Merge pull request #32092 from microsoft/report-multiple-overload-errors

Report multiple overload errors

src/compiler/checker.ts

@@ -11793,7 +11793,7 @@ namespace ts {
             return isTypeComparableTo(type1, type2) || isTypeComparableTo(type2, type1);
         }
 
-        function checkTypeAssignableTo(source: Type, target: Type, errorNode: Node | undefined, headMessage?: DiagnosticMessage, containingMessageChain?: () => DiagnosticMessageChain | undefined, errorOutputObject?: { error?: Diagnostic }): boolean {
+        function checkTypeAssignableTo(source: Type, target: Type, errorNode: Node | undefined, headMessage?: DiagnosticMessage, containingMessageChain?: () => DiagnosticMessageChain | undefined, errorOutputObject?: { errors?: Diagnostic[] }): boolean {
             return checkTypeRelatedTo(source, target, assignableRelation, errorNode, headMessage, containingMessageChain, errorOutputObject);
         }
 
@@ -11802,13 +11802,22 @@ namespace ts {
          * attempt to issue more specific errors on, for example, specific object literal properties or tuple members.
          */
         function checkTypeAssignableToAndOptionallyElaborate(source: Type, target: Type, errorNode: Node | undefined, expr: Expression | undefined, headMessage?: DiagnosticMessage, containingMessageChain?: () => DiagnosticMessageChain | undefined): boolean {
-            return checkTypeRelatedToAndOptionallyElaborate(source, target, assignableRelation, errorNode, expr, headMessage, containingMessageChain);
+            return checkTypeRelatedToAndOptionallyElaborate(source, target, assignableRelation, errorNode, expr, headMessage, containingMessageChain, /*errorOutputContainer*/ undefined);
         }
 
-        function checkTypeRelatedToAndOptionallyElaborate(source: Type, target: Type, relation: Map<RelationComparisonResult>, errorNode: Node | undefined, expr: Expression | undefined, headMessage?: DiagnosticMessage, containingMessageChain?: () => DiagnosticMessageChain | undefined): boolean {
+        function checkTypeRelatedToAndOptionallyElaborate(
+            source: Type,
+            target: Type,
+            relation: Map<RelationComparisonResult>,
+            errorNode: Node | undefined,
+            expr: Expression | undefined,
+            headMessage: DiagnosticMessage | undefined,
+            containingMessageChain: (() => DiagnosticMessageChain | undefined) | undefined,
+            errorOutputContainer: { errors?: Diagnostic[], skipLogging?: boolean } | undefined
+        ): boolean {
             if (isTypeRelatedTo(source, target, relation)) return true;
-            if (!errorNode || !elaborateError(expr, source, target, relation, headMessage)) {
-                return checkTypeRelatedTo(source, target, relation, errorNode, headMessage, containingMessageChain);
+            if (!errorNode || !elaborateError(expr, source, target, relation, headMessage, containingMessageChain, errorOutputContainer)) {
+                return checkTypeRelatedTo(source, target, relation, errorNode, headMessage, containingMessageChain, errorOutputContainer);
             }
             return false;
         }
@@ -11817,35 +11826,52 @@ namespace ts {
             return !!(type.flags & TypeFlags.Conditional || (type.flags & TypeFlags.Intersection && some((type as IntersectionType).types, isOrHasGenericConditional)));
         }
 
-        function elaborateError(node: Expression | undefined, source: Type, target: Type, relation: Map<RelationComparisonResult>, headMessage: DiagnosticMessage | undefined): boolean {
+        function elaborateError(
+            node: Expression | undefined,
+            source: Type,
+            target: Type,
+            relation: Map<RelationComparisonResult>,
+            headMessage: DiagnosticMessage | undefined,
+            containingMessageChain: (() => DiagnosticMessageChain | undefined) | undefined,
+            errorOutputContainer: { errors?: Diagnostic[], skipLogging?: boolean } | undefined
+        ): boolean {
             if (!node || isOrHasGenericConditional(target)) return false;
-            if (!checkTypeRelatedTo(source, target, relation, /*errorNode*/ undefined) && elaborateDidYouMeanToCallOrConstruct(node, source, target, relation, headMessage)) {
+            if (!checkTypeRelatedTo(source, target, relation, /*errorNode*/ undefined)
+                && elaborateDidYouMeanToCallOrConstruct(node, source, target, relation, headMessage, containingMessageChain, errorOutputContainer)) {
                 return true;
             }
             switch (node.kind) {
                 case SyntaxKind.JsxExpression:
                 case SyntaxKind.ParenthesizedExpression:
-                    return elaborateError((node as ParenthesizedExpression | JsxExpression).expression, source, target, relation, headMessage);
+                    return elaborateError((node as ParenthesizedExpression | JsxExpression).expression, source, target, relation, headMessage, containingMessageChain, errorOutputContainer);
                 case SyntaxKind.BinaryExpression:
                     switch ((node as BinaryExpression).operatorToken.kind) {
                         case SyntaxKind.EqualsToken:
                         case SyntaxKind.CommaToken:
-                            return elaborateError((node as BinaryExpression).right, source, target, relation, headMessage);
+                            return elaborateError((node as BinaryExpression).right, source, target, relation, headMessage, containingMessageChain, errorOutputContainer);
                     }
                     break;
                 case SyntaxKind.ObjectLiteralExpression:
-                    return elaborateObjectLiteral(node as ObjectLiteralExpression, source, target, relation);
+                    return elaborateObjectLiteral(node as ObjectLiteralExpression, source, target, relation, containingMessageChain, errorOutputContainer);
                 case SyntaxKind.ArrayLiteralExpression:
-                    return elaborateArrayLiteral(node as ArrayLiteralExpression, source, target, relation);
+                    return elaborateArrayLiteral(node as ArrayLiteralExpression, source, target, relation, containingMessageChain, errorOutputContainer);
                 case SyntaxKind.JsxAttributes:
-                    return elaborateJsxComponents(node as JsxAttributes, source, target, relation);
+                    return elaborateJsxComponents(node as JsxAttributes, source, target, relation, containingMessageChain, errorOutputContainer);
                 case SyntaxKind.ArrowFunction:
-                    return elaborateArrowFunction(node as ArrowFunction, source, target, relation);
+                    return elaborateArrowFunction(node as ArrowFunction, source, target, relation, containingMessageChain, errorOutputContainer);
             }
             return false;
         }
 
-        function elaborateDidYouMeanToCallOrConstruct(node: Expression, source: Type, target: Type, relation: Map<RelationComparisonResult>, headMessage: DiagnosticMessage | undefined): boolean {
+        function elaborateDidYouMeanToCallOrConstruct(
+            node: Expression,
+            source: Type,
+            target: Type,
+            relation: Map<RelationComparisonResult>,
+            headMessage: DiagnosticMessage | undefined,
+            containingMessageChain: (() => DiagnosticMessageChain | undefined) | undefined,
+            errorOutputContainer: { errors?: Diagnostic[], skipLogging?: boolean } | undefined
+        ): boolean {
             const callSignatures = getSignaturesOfType(source, SignatureKind.Call);
             const constructSignatures = getSignaturesOfType(source, SignatureKind.Construct);
             for (const signatures of [constructSignatures, callSignatures]) {
@@ -11853,9 +11879,9 @@ namespace ts {
                     const returnType = getReturnTypeOfSignature(s);
                     return !(returnType.flags & (TypeFlags.Any | TypeFlags.Never)) && checkTypeRelatedTo(returnType, target, relation, /*errorNode*/ undefined);
                 })) {
-                    const resultObj: { error?: Diagnostic } = {};
-                    checkTypeAssignableTo(source, target, node, headMessage, /*containingChain*/ undefined, resultObj);
-                    const diagnostic = resultObj.error!;
+                    const resultObj: { errors?: Diagnostic[] } = errorOutputContainer || {};
+                    checkTypeAssignableTo(source, target, node, headMessage, containingMessageChain, resultObj);
+                    const diagnostic = resultObj.errors![resultObj.errors!.length - 1];
                     addRelatedInfo(diagnostic, createDiagnosticForNode(
                         node,
                         signatures === constructSignatures ? Diagnostics.Did_you_mean_to_use_new_with_this_expression : Diagnostics.Did_you_mean_to_call_this_expression
@@ -11866,7 +11892,14 @@ namespace ts {
             return false;
         }
 
-        function elaborateArrowFunction(node: ArrowFunction, source: Type, target: Type, relation: Map<RelationComparisonResult>): boolean {
+        function elaborateArrowFunction(
+            node: ArrowFunction,
+            source: Type,
+            target: Type,
+            relation: Map<RelationComparisonResult>,
+            containingMessageChain: (() => DiagnosticMessageChain | undefined) | undefined,
+            errorOutputContainer: { errors?: Diagnostic[], skipLogging?: boolean } | undefined
+        ): boolean {
             // Don't elaborate blocks
             if (isBlock(node.body)) {
                 return false;
@@ -11887,15 +11920,15 @@ namespace ts {
             const sourceReturn = getReturnTypeOfSignature(sourceSig);
             const targetReturn = getUnionType(map(targetSignatures, getReturnTypeOfSignature));
             if (!checkTypeRelatedTo(sourceReturn, targetReturn, relation, /*errorNode*/ undefined)) {
-                const elaborated = returnExpression && elaborateError(returnExpression, sourceReturn, targetReturn, relation, /*headMessage*/ undefined);
+                const elaborated = returnExpression && elaborateError(returnExpression, sourceReturn, targetReturn, relation, /*headMessage*/ undefined, containingMessageChain, errorOutputContainer);
                 if (elaborated) {
                     return elaborated;
                 }
-                const resultObj: { error?: Diagnostic } = {};
-                checkTypeRelatedTo(sourceReturn, targetReturn, relation, returnExpression, /*message*/ undefined, /*chain*/ undefined, resultObj);
-                if (resultObj.error) {
+                const resultObj: { errors?: Diagnostic[] } = errorOutputContainer || {};
+                checkTypeRelatedTo(sourceReturn, targetReturn, relation, returnExpression, /*message*/ undefined, containingMessageChain, resultObj);
+                if (resultObj.errors) {
                     if (target.symbol && length(target.symbol.declarations)) {
-                        addRelatedInfo(resultObj.error, createDiagnosticForNode(
+                        addRelatedInfo(resultObj.errors[resultObj.errors.length - 1], createDiagnosticForNode(
                             target.symbol.declarations[0],
                             Diagnostics.The_expected_type_comes_from_the_return_type_of_this_signature,
                         ));
@@ -11912,7 +11945,14 @@ namespace ts {
          * If that element would issue an error, we first attempt to dive into that element's inner expression and issue a more specific error by recuring into `elaborateError`
          * Otherwise, we issue an error on _every_ element which fail the assignability check
          */
-        function elaborateElementwise(iterator: ElaborationIterator, source: Type, target: Type, relation: Map<RelationComparisonResult>) {
+        function elaborateElementwise(
+            iterator: ElaborationIterator,
+            source: Type,
+            target: Type,
+            relation: Map<RelationComparisonResult>,
+            containingMessageChain: (() => DiagnosticMessageChain | undefined) | undefined,
+            errorOutputContainer: { errors?: Diagnostic[], skipLogging?: boolean } | undefined
+        ) {
             // Assignability failure - check each prop individually, and if that fails, fall back on the bad error span
             let reportedError = false;
             for (let status = iterator.next(); !status.done; status = iterator.next()) {
@@ -11921,22 +11961,22 @@ namespace ts {
                 if (!targetPropType || targetPropType.flags & TypeFlags.IndexedAccess) continue; // Don't elaborate on indexes on generic variables
                 const sourcePropType = getIndexedAccessTypeOrUndefined(source, nameType);
                 if (sourcePropType && !checkTypeRelatedTo(sourcePropType, targetPropType, relation, /*errorNode*/ undefined)) {
-                    const elaborated = next && elaborateError(next, sourcePropType, targetPropType, relation, /*headMessage*/ undefined);
+                    const elaborated = next && elaborateError(next, sourcePropType, targetPropType, relation, /*headMessage*/ undefined, containingMessageChain, errorOutputContainer);
                     if (elaborated) {
                         reportedError = true;
                     }
                     else {
                         // Issue error on the prop itself, since the prop couldn't elaborate the error
-                        const resultObj: { error?: Diagnostic } = {};
+                        const resultObj: { errors?: Diagnostic[] } = errorOutputContainer || {};
                         // Use the expression type, if available
                         const specificSource = next ? checkExpressionForMutableLocation(next, CheckMode.Normal, sourcePropType) : sourcePropType;
-                        const result = checkTypeRelatedTo(specificSource, targetPropType, relation, prop, errorMessage, /*containingChain*/ undefined, resultObj);
+                        const result = checkTypeRelatedTo(specificSource, targetPropType, relation, prop, errorMessage, containingMessageChain, resultObj);
                         if (result && specificSource !== sourcePropType) {
                             // If for whatever reason the expression type doesn't yield an error, make sure we still issue an error on the sourcePropType
-                            checkTypeRelatedTo(sourcePropType, targetPropType, relation, prop, errorMessage, /*containingChain*/ undefined, resultObj);
+                            checkTypeRelatedTo(sourcePropType, targetPropType, relation, prop, errorMessage, containingMessageChain, resultObj);
                         }
-                        if (resultObj.error) {
-                            const reportedDiag = resultObj.error;
+                        if (resultObj.errors) {
+                            const reportedDiag = resultObj.errors[resultObj.errors.length - 1];
                             const propertyName = isTypeUsableAsPropertyName(nameType) ? getPropertyNameFromType(nameType) : undefined;
                             const targetProp = propertyName !== undefined ? getPropertyOfType(target, propertyName) : undefined;
 
@@ -12019,8 +12059,15 @@ namespace ts {
             return filter(children, i => !isJsxText(i) || !i.containsOnlyTriviaWhiteSpaces);
         }
 
-        function elaborateJsxComponents(node: JsxAttributes, source: Type, target: Type, relation: Map<RelationComparisonResult>) {
-            let result = elaborateElementwise(generateJsxAttributes(node), source, target, relation);
+        function elaborateJsxComponents(
+            node: JsxAttributes,
+            source: Type,
+            target: Type,
+            relation: Map<RelationComparisonResult>,
+            containingMessageChain: (() => DiagnosticMessageChain | undefined) | undefined,
+            errorOutputContainer: { errors?: Diagnostic[], skipLogging?: boolean } | undefined
+        ) {
+            let result = elaborateElementwise(generateJsxAttributes(node), source, target, relation, containingMessageChain, errorOutputContainer);
             let invalidTextDiagnostic: DiagnosticMessage | undefined;
             if (isJsxOpeningElement(node.parent) && isJsxElement(node.parent.parent)) {
                 const containingElement = node.parent.parent;
@@ -12038,17 +12085,21 @@ namespace ts {
                 if (moreThanOneRealChildren) {
                     if (arrayLikeTargetParts !== neverType) {
                         const realSource = createTupleType(checkJsxChildren(containingElement, CheckMode.Normal));
-                        result = elaborateElementwise(generateJsxChildren(containingElement, getInvalidTextualChildDiagnostic), realSource, arrayLikeTargetParts, relation) || result;
+                        const children = generateJsxChildren(containingElement, getInvalidTextualChildDiagnostic);
+                        result = elaborateElementwise(children, realSource, arrayLikeTargetParts, relation, containingMessageChain, errorOutputContainer) || result;
                     }
                     else if (!isTypeRelatedTo(getIndexedAccessType(source, childrenNameType), childrenTargetType, relation)) {
                         // arity mismatch
                         result = true;
-                        error(
+                        const diag = error(
                             containingElement.openingElement.tagName,
                             Diagnostics.This_JSX_tag_s_0_prop_expects_a_single_child_of_type_1_but_multiple_children_were_provided,
                             childrenPropName,
                             typeToString(childrenTargetType)
                         );
+                        if (errorOutputContainer && errorOutputContainer.skipLogging) {
+                            (errorOutputContainer.errors || (errorOutputContainer.errors = [])).push(diag);
+                        }
                     }
                 }
                 else {
@@ -12060,19 +12111,24 @@ namespace ts {
                                 (function*() { yield elem; })(),
                                 source,
                                 target,
-                                relation
+                                relation,
+                                containingMessageChain,
+                                errorOutputContainer
                             ) || result;
                         }
                     }
                     else if (!isTypeRelatedTo(getIndexedAccessType(source, childrenNameType), childrenTargetType, relation)) {
                         // arity mismatch
                         result = true;
-                        error(
+                        const diag = error(
                             containingElement.openingElement.tagName,
                             Diagnostics.This_JSX_tag_s_0_prop_expects_type_1_which_requires_multiple_children_but_only_a_single_child_was_provided,
                             childrenPropName,
                             typeToString(childrenTargetType)
                         );
+                        if (errorOutputContainer && errorOutputContainer.skipLogging) {
+                            (errorOutputContainer.errors || (errorOutputContainer.errors = [])).push(diag);
+                        }
                     }
                 }
             }
@@ -12104,15 +12160,22 @@ namespace ts {
             }
         }
 
-        function elaborateArrayLiteral(node: ArrayLiteralExpression, source: Type, target: Type, relation: Map<RelationComparisonResult>) {
+        function elaborateArrayLiteral(
+            node: ArrayLiteralExpression,
+            source: Type,
+            target: Type,
+            relation: Map<RelationComparisonResult>,
+            containingMessageChain: (() => DiagnosticMessageChain | undefined) | undefined,
+            errorOutputContainer: { errors?: Diagnostic[], skipLogging?: boolean } | undefined
+        ) {
             if (target.flags & TypeFlags.Primitive) return false;
             if (isTupleLikeType(source)) {
-                return elaborateElementwise(generateLimitedTupleElements(node, target), source, target, relation);
+                return elaborateElementwise(generateLimitedTupleElements(node, target), source, target, relation, containingMessageChain, errorOutputContainer);
             }
             // recreate a tuple from the elements, if possible
             const tupleizedType = checkArrayLiteral(node, CheckMode.Contextual, /*forceTuple*/ true);
             if (isTupleLikeType(tupleizedType)) {
-                return elaborateElementwise(generateLimitedTupleElements(node, target), tupleizedType, target, relation);
+                return elaborateElementwise(generateLimitedTupleElements(node, target), tupleizedType, target, relation, containingMessageChain, errorOutputContainer);
             }
             return false;
         }
@@ -12141,9 +12204,16 @@ namespace ts {
             }
         }
 
-        function elaborateObjectLiteral(node: ObjectLiteralExpression, source: Type, target: Type, relation: Map<RelationComparisonResult>) {
+        function elaborateObjectLiteral(
+            node: ObjectLiteralExpression,
+            source: Type,
+            target: Type,
+            relation: Map<RelationComparisonResult>,
+            containingMessageChain: (() => DiagnosticMessageChain | undefined) | undefined,
+            errorOutputContainer: { errors?: Diagnostic[], skipLogging?: boolean } | undefined
+        ) {
             if (target.flags & TypeFlags.Primitive) return false;
-            return elaborateElementwise(generateObjectLiteralElements(node), source, target, relation);
+            return elaborateElementwise(generateObjectLiteralElements(node), source, target, relation, containingMessageChain, errorOutputContainer);
         }
 
         /**
@@ -12484,6 +12554,7 @@ namespace ts {
          * @param errorNode The suggested node upon which all errors will be reported, if defined. This may or may not be the actual node used.
          * @param headMessage If the error chain should be prepended by a head message, then headMessage will be used.
          * @param containingMessageChain A chain of errors to prepend any new errors found.
+         * @param errorOutputContainer Return the diagnostic. Do not log if 'skipLogging' is truthy.
          */
         function checkTypeRelatedTo(
             source: Type,
@@ -12492,9 +12563,8 @@ namespace ts {
             errorNode: Node | undefined,
             headMessage?: DiagnosticMessage,
             containingMessageChain?: () => DiagnosticMessageChain | undefined,
-            errorOutputContainer?: { error?: Diagnostic }
+            errorOutputContainer?: { errors?: Diagnostic[], skipLogging?: boolean },
         ): boolean {
-
             let errorInfo: DiagnosticMessageChain | undefined;
             let relatedInfo: [DiagnosticRelatedInformation, ...DiagnosticRelatedInformation[]] | undefined;
             let maybeKeys: string[];
@@ -12510,13 +12580,17 @@ namespace ts {
 
             const result = isRelatedTo(source, target, /*reportErrors*/ !!errorNode, headMessage);
             if (overflow) {
-                error(errorNode, Diagnostics.Excessive_stack_depth_comparing_types_0_and_1, typeToString(source), typeToString(target));
+                const diag = error(errorNode, Diagnostics.Excessive_stack_depth_comparing_types_0_and_1, typeToString(source), typeToString(target));
+                if (errorOutputContainer) {
+                    (errorOutputContainer.errors || (errorOutputContainer.errors = [])).push(diag);
+                }
             }
             else if (errorInfo) {
                 if (containingMessageChain) {
                     const chain = containingMessageChain();
                     if (chain) {
-                        errorInfo = concatenateDiagnosticMessageChains(chain, errorInfo);
+                        concatenateDiagnosticMessageChains(chain, errorInfo);
+                        errorInfo = chain;
                     }
                 }
 
@@ -12533,15 +12607,19 @@ namespace ts {
                         }
                     }
                 }
-
                 const diag = createDiagnosticForNodeFromMessageChain(errorNode!, errorInfo, relatedInformation);
                 if (relatedInfo) {
                     addRelatedInfo(diag, ...relatedInfo);
                 }
                 if (errorOutputContainer) {
-                    errorOutputContainer.error = diag;
+                    (errorOutputContainer.errors || (errorOutputContainer.errors = [])).push(diag);
                 }
-                diagnostics.add(diag); // TODO: GH#18217
+                if (!errorOutputContainer || !errorOutputContainer.skipLogging) {
+                    diagnostics.add(diag);
+                }
+            }
+            if (errorNode && errorOutputContainer && errorOutputContainer.skipLogging && result === Ternary.False) {
+                Debug.assert(!!errorOutputContainer.errors, "missed opportunity to interact with error.");
             }
             return result !== Ternary.False;
 
@@ -21273,24 +21351,48 @@ namespace ts {
          * @param signature a candidate signature we are trying whether it is a call signature
          * @param relation a relationship to check parameter and argument type
          */
-        function checkApplicableSignatureForJsxOpeningLikeElement(node: JsxOpeningLikeElement, signature: Signature, relation: Map<RelationComparisonResult>, checkMode: CheckMode, reportErrors: boolean) {
+        function checkApplicableSignatureForJsxOpeningLikeElement(
+            node: JsxOpeningLikeElement,
+            signature: Signature,
+            relation: Map<RelationComparisonResult>,
+            checkMode: CheckMode,
+            reportErrors: boolean,
+            containingMessageChain: (() => DiagnosticMessageChain | undefined) | undefined,
+            errorOutputContainer: { errors?: Diagnostic[], skipLogging?: boolean }
+        ) {
             // Stateless function components can have maximum of three arguments: "props", "context", and "updater".
             // However "context" and "updater" are implicit and can't be specify by users. Only the first parameter, props,
             // can be specified by users through attributes property.
             const paramType = getEffectiveFirstArgumentForJsxSignature(signature, node);
             const attributesType = checkExpressionWithContextualType(node.attributes, paramType, /*inferenceContext*/ undefined, checkMode);
-            return checkTypeRelatedToAndOptionallyElaborate(attributesType, paramType, relation, reportErrors ? node.tagName : undefined, node.attributes);
+            return checkTypeRelatedToAndOptionallyElaborate(
+                attributesType,
+                paramType,
+                relation,
+                reportErrors ? node.tagName : undefined,
+                node.attributes,
+                /*headMessage*/ undefined,
+                containingMessageChain,
+                errorOutputContainer);
         }
 
-        function checkApplicableSignature(
+        function getSignatureApplicabilityError(
             node: CallLikeExpression,
             args: ReadonlyArray<Expression>,
             signature: Signature,
             relation: Map<RelationComparisonResult>,
             checkMode: CheckMode,
-            reportErrors: boolean) {
+            reportErrors: boolean,
+            containingMessageChain: (() => DiagnosticMessageChain | undefined) | undefined,
+        ) {
+
+            const errorOutputContainer: { errors?: Diagnostic[], skipLogging?: boolean } = { errors: undefined, skipLogging: true };
             if (isJsxOpeningLikeElement(node)) {
-                return checkApplicableSignatureForJsxOpeningLikeElement(node, signature, relation, checkMode, reportErrors);
+                if (!checkApplicableSignatureForJsxOpeningLikeElement(node, signature, relation, checkMode, reportErrors, containingMessageChain, errorOutputContainer)) {
+                    Debug.assert(!reportErrors || !!errorOutputContainer.errors, "jsx should have errors when reporting errors");
+                    return errorOutputContainer.errors || [];
+                }
+                return undefined;
             }
             const thisType = getThisTypeOfSignature(signature);
             if (thisType && thisType !== voidType && node.kind !== SyntaxKind.NewExpression) {
@@ -21301,8 +21403,9 @@ namespace ts {
                 const thisArgumentType = thisArgumentNode ? checkExpression(thisArgumentNode) : voidType;
                 const errorNode = reportErrors ? (thisArgumentNode || node) : undefined;
                 const headMessage = Diagnostics.The_this_context_of_type_0_is_not_assignable_to_method_s_this_of_type_1;
-                if (!checkTypeRelatedTo(thisArgumentType, thisType, relation, errorNode, headMessage)) {
-                    return false;
+                if (!checkTypeRelatedTo(thisArgumentType, thisType, relation, errorNode, headMessage, containingMessageChain, errorOutputContainer)) {
+                    Debug.assert(!reportErrors || !!errorOutputContainer.errors, "this parameter should have errors when reporting errors");
+                    return errorOutputContainer.errors || [];
                 }
             }
             const headMessage = Diagnostics.Argument_of_type_0_is_not_assignable_to_parameter_of_type_1;
@@ -21317,17 +21420,21 @@ namespace ts {
                     // we obtain the regular type of any object literal arguments because we may not have inferred complete
                     // parameter types yet and therefore excess property checks may yield false positives (see #17041).
                     const checkArgType = checkMode & CheckMode.SkipContextSensitive ? getRegularTypeOfObjectLiteral(argType) : argType;
-                    if (!checkTypeRelatedToAndOptionallyElaborate(checkArgType, paramType, relation, reportErrors ? arg : undefined, arg, headMessage)) {
-                        return false;
+                    if (!checkTypeRelatedToAndOptionallyElaborate(checkArgType, paramType, relation, reportErrors ? arg : undefined, arg, headMessage, containingMessageChain, errorOutputContainer)) {
+                        Debug.assert(!reportErrors || !!errorOutputContainer.errors, "parameter should have errors when reporting errors");
+                        return errorOutputContainer.errors || [];
                     }
                 }
             }
             if (restType) {
                 const spreadType = getSpreadArgumentType(args, argCount, args.length, restType, /*context*/ undefined);
                 const errorNode = reportErrors ? argCount < args.length ? args[argCount] : node : undefined;
-                return checkTypeRelatedTo(spreadType, restType, relation, errorNode, headMessage);
+                if (!checkTypeRelatedTo(spreadType, restType, relation, errorNode, headMessage, /*containingMessageChain*/ undefined, errorOutputContainer)) {
+                    Debug.assert(!reportErrors || !!errorOutputContainer.errors, "rest parameter should have errors when reporting errors");
+                    return errorOutputContainer.errors || [];
+                }
             }
-            return true;
+            return undefined;
         }
 
         /**
@@ -21645,7 +21752,7 @@ namespace ts {
             //     function foo(): void;
             //     foo<number>(0);
             //
-            let candidateForArgumentError: Signature | undefined;
+            let candidatesForArgumentError: Signature[] | undefined;
             let candidateForArgumentArityError: Signature | undefined;
             let candidateForTypeArgumentError: Signature | undefined;
             let result: Signature | undefined;
@@ -21680,9 +21787,55 @@ namespace ts {
             // If candidate is undefined, it means that no candidates had a suitable arity. In that case,
             // skip the checkApplicableSignature check.
             if (reportErrors) {
+                if (candidatesForArgumentError) {
+                    if (candidatesForArgumentError.length === 1 || candidatesForArgumentError.length > 3) {
+                        const last = candidatesForArgumentError[candidatesForArgumentError.length - 1];
+                        let chain: DiagnosticMessageChain | undefined;
+                        if (candidatesForArgumentError.length > 3) {
+                            chain = chainDiagnosticMessages(chain, Diagnostics.The_last_overload_gave_the_following_error);
+                            chain = chainDiagnosticMessages(chain, Diagnostics.No_overload_matches_this_call);
+                        }
+                        const diags = getSignatureApplicabilityError(node, args, last, assignableRelation, CheckMode.Normal, /*reportErrors*/ true, () => chain);
+                        if (diags) {
+                            for (const d of diags) {
+                                if (last.declaration && candidatesForArgumentError.length > 3) {
+                                    addRelatedInfo(d, createDiagnosticForNode(last.declaration, Diagnostics.The_last_overload_is_declared_here));
+                                }
+                                diagnostics.add(d);
+                            }
+                        }
+                        else {
+                            Debug.fail("No error for last overload signature");
+                        }
+                    }
+                    else {
+                        const allDiagnostics: DiagnosticRelatedInformation[][] = [];
+                        let max = 0;
+                        let min = Number.MAX_VALUE;
+                        let minIndex = 0;
+                        let i = 0;
+                        for (const c of candidatesForArgumentError) {
+                            const chain = () => chainDiagnosticMessages(/*details*/ undefined, Diagnostics.Overload_0_of_1_2_gave_the_following_error, i + 1, candidates.length, signatureToString(c));
+                            const diags = getSignatureApplicabilityError(node, args, c, assignableRelation, CheckMode.Normal, /*reportErrors*/ true, chain);
+                            if (diags) {
+                                if (diags.length <= min) {
+                                    min = diags.length;
+                                    minIndex = i;
+                                }
+                                max = Math.max(max, diags.length);
+                                allDiagnostics.push(diags);
+                            }
+                            else {
+                                Debug.fail("No error for 3 or fewer overload signatures");
+                            }
+                            i++;
+                        }
 
-                if (candidateForArgumentError) {
-                    checkApplicableSignature(node, args, candidateForArgumentError, assignableRelation, CheckMode.Normal, /*reportErrors*/ true);
+                        const diags = max > 1 ? allDiagnostics[minIndex] : flatten(allDiagnostics);
+                        const chain = map(diags, d => typeof d.messageText === "string" ? (d as DiagnosticMessageChain) : d.messageText);
+                        const related = flatMap(diags, d => (d as Diagnostic).relatedInformation) as DiagnosticRelatedInformation[];
+                        diagnostics.add(createDiagnosticForNodeFromMessageChain(node, chainDiagnosticMessages(chain, Diagnostics.No_overload_matches_this_call), related));
+                    }
                 }
                 else if (candidateForArgumentArityError) {
                     diagnostics.add(getArgumentArityError(node, [candidateForArgumentArityError], args));
@@ -21707,7 +21860,7 @@ namespace ts {
             return produceDiagnostics || !args ? resolveErrorCall(node) : getCandidateForOverloadFailure(node, candidates, args, !!candidatesOutArray);
 
             function chooseOverload(candidates: Signature[], relation: Map<RelationComparisonResult>, signatureHelpTrailingComma = false) {
-                candidateForArgumentError = undefined;
+                candidatesForArgumentError = undefined;
                 candidateForArgumentArityError = undefined;
                 candidateForTypeArgumentError = undefined;
 
@@ -21716,8 +21869,8 @@ namespace ts {
                     if (typeArguments || !hasCorrectArity(node, args, candidate, signatureHelpTrailingComma)) {
                         return undefined;
                     }
-                    if (!checkApplicableSignature(node, args, candidate, relation, CheckMode.Normal, /*reportErrors*/ false)) {
-                        candidateForArgumentError = candidate;
+                    if (getSignatureApplicabilityError(node, args, candidate, relation, CheckMode.Normal, /*reportErrors*/ false, /*containingMessageChain*/ undefined)) {
+                        candidatesForArgumentError = [candidate];
                         return undefined;
                     }
                     return candidate;
@@ -21757,11 +21910,9 @@ namespace ts {
                     else {
                         checkCandidate = candidate;
                     }
-                    if (!checkApplicableSignature(node, args, checkCandidate, relation, argCheckMode, /*reportErrors*/ false)) {
+                    if (getSignatureApplicabilityError(node, args, checkCandidate, relation, argCheckMode, /*reportErrors*/ false, /*containingMessageChain*/ undefined)) {
                         // Give preference to error candidates that have no rest parameters (as they are more specific)
-                        if (!candidateForArgumentError || getEffectiveRestType(candidateForArgumentError) || !getEffectiveRestType(checkCandidate)) {
-                            candidateForArgumentError = checkCandidate;
-                        }
+                        (candidatesForArgumentError || (candidatesForArgumentError = [])).push(checkCandidate);
                         continue;
                     }
                     if (argCheckMode) {
@@ -21779,11 +21930,9 @@ namespace ts {
                                 continue;
                             }
                         }
-                        if (!checkApplicableSignature(node, args, checkCandidate, relation, argCheckMode, /*reportErrors*/ false)) {
+                        if (getSignatureApplicabilityError(node, args, checkCandidate, relation, argCheckMode, /*reportErrors*/ false, /*containingMessageChain*/ undefined)) {
                             // Give preference to error candidates that have no rest parameters (as they are more specific)
-                            if (!candidateForArgumentError || getEffectiveRestType(candidateForArgumentError) || !getEffectiveRestType(checkCandidate)) {
-                                candidateForArgumentError = checkCandidate;
-                            }
+                            (candidatesForArgumentError || (candidatesForArgumentError = [])).push(checkCandidate);
                             continue;
                         }
                     }

src/compiler/core.ts

@@ -600,24 +600,18 @@ namespace ts {
      *
      * @param array The array to flatten.
      */
-    export function flatten<T>(array: ReadonlyArray<T | ReadonlyArray<T> | undefined>): T[];
-    export function flatten<T>(array: ReadonlyArray<T | ReadonlyArray<T> | undefined> | undefined): T[] | undefined;
-    export function flatten<T>(array: ReadonlyArray<T | ReadonlyArray<T> | undefined> | undefined): T[] | undefined {
-        let result: T[] | undefined;
-        if (array) {
-            result = [];
-            for (const v of array) {
-                if (v) {
-                    if (isArray(v)) {
-                        addRange(result, v);
-                    }
-                    else {
-                        result.push(v);
-                    }
+    export function flatten<T>(array: T[][] | ReadonlyArray<T | ReadonlyArray<T> | undefined>): T[] {
+        const result = [];
+        for (const v of array) {
+            if (v) {
+                if (isArray(v)) {
+                    addRange(result, v);
+                }
+                else {
+                    result.push(v);
                 }
             }
         }
-
         return result;
     }
 

src/compiler/diagnosticMessages.json

@@ -2677,6 +2677,22 @@
         "category": "Error",
         "code": 2768
     },
+    "No overload matches this call.": {
+        "category": "Error",
+        "code": 2769
+    },
+    "The last overload gave the following error.": {
+        "category": "Error",
+        "code": 2770
+    },
+    "The last overload is declared here.": {
+        "category": "Error",
+        "code": 2771
+    },
+    "Overload {0} of {1}, '{2}', gave the following error.": {
+        "category": "Error",
+        "code": 2772
+    },
 
     "Import declaration '{0}' is using private name '{1}'.": {
         "category": "Error",

src/compiler/program.ts

@@ -502,30 +502,29 @@ namespace ts {
         return output;
     }
 
-    export function flattenDiagnosticMessageText(messageText: string | DiagnosticMessageChain | undefined, newLine: string): string {
-        if (isString(messageText)) {
-            return messageText;
+    export function flattenDiagnosticMessageText(diag: string | DiagnosticMessageChain | undefined, newLine: string, indent = 0): string {
+        if (isString(diag)) {
+            return diag;
         }
-        else {
-            let diagnosticChain = messageText;
-            let result = "";
+        else if (diag === undefined) {
+            return "";
+        }
+        let result = "";
+        if (indent) {
+            result += newLine;
 
-            let indent = 0;
-            while (diagnosticChain) {
-                if (indent) {
-                    result += newLine;
-
-                    for (let i = 0; i < indent; i++) {
-                        result += "  ";
-                    }
-                }
-                result += diagnosticChain.messageText;
-                indent++;
-                diagnosticChain = diagnosticChain.next;
+            for (let i = 0; i < indent; i++) {
+                result += "  ";
             }
-
-            return result;
         }
+        result += diag.messageText;
+        indent++;
+        if (diag.next) {
+            for (const kid of diag.next) {
+                result += flattenDiagnosticMessageText(kid, newLine, indent);
+            }
+        }
+        return result;
     }
 
     /* @internal */

src/compiler/types.ts

@@ -4577,7 +4577,7 @@ namespace ts {
         messageText: string;
         category: DiagnosticCategory;
         code: number;
-        next?: DiagnosticMessageChain;
+        next?: DiagnosticMessageChain[];
     }
 
     export interface Diagnostic extends DiagnosticRelatedInformation {

src/compiler/utilities.ts

@@ -7125,8 +7125,8 @@ namespace ts {
         };
     }
 
-    export function chainDiagnosticMessages(details: DiagnosticMessageChain | undefined, message: DiagnosticMessage, ...args: (string | number | undefined)[]): DiagnosticMessageChain;
-    export function chainDiagnosticMessages(details: DiagnosticMessageChain | undefined, message: DiagnosticMessage): DiagnosticMessageChain {
+    export function chainDiagnosticMessages(details: DiagnosticMessageChain | DiagnosticMessageChain[] | undefined, message: DiagnosticMessage, ...args: (string | number | undefined)[]): DiagnosticMessageChain;
+    export function chainDiagnosticMessages(details: DiagnosticMessageChain | DiagnosticMessageChain[] | undefined, message: DiagnosticMessage): DiagnosticMessageChain {
         let text = getLocaleSpecificMessage(message);
 
         if (arguments.length > 2) {
@@ -7138,18 +7138,17 @@ namespace ts {
             category: message.category,
             code: message.code,
 
-            next: details
+            next: details === undefined || Array.isArray(details) ? details : [details]
         };
     }
 
-    export function concatenateDiagnosticMessageChains(headChain: DiagnosticMessageChain, tailChain: DiagnosticMessageChain): DiagnosticMessageChain {
+    export function concatenateDiagnosticMessageChains(headChain: DiagnosticMessageChain, tailChain: DiagnosticMessageChain): void {
         let lastChain = headChain;
         while (lastChain.next) {
-            lastChain = lastChain.next;
+            lastChain = lastChain.next[0];
         }
 
-        lastChain.next = tailChain;
-        return headChain;
+        lastChain.next = [tailChain];
     }
 
     function getDiagnosticFilePath(diagnostic: Diagnostic): string | undefined {
@@ -7185,29 +7184,42 @@ namespace ts {
     }
 
     function compareMessageText(t1: string | DiagnosticMessageChain, t2: string | DiagnosticMessageChain): Comparison {
-        let text1: string | DiagnosticMessageChain | undefined = t1;
-        let text2: string | DiagnosticMessageChain | undefined = t2;
-        while (text1 && text2) {
-            // We still have both chains.
-            const string1 = isString(text1) ? text1 : text1.messageText;
-            const string2 = isString(text2) ? text2 : text2.messageText;
-
-            const res = compareStringsCaseSensitive(string1, string2);
+        if (typeof t1 === "string" && typeof t2 === "string") {
+            return compareStringsCaseSensitive(t1, t2);
+        }
+        else if (typeof t1 === "string") {
+            return Comparison.LessThan;
+        }
+        else if (typeof t2 === "string") {
+            return Comparison.GreaterThan;
+        }
+        let res = compareStringsCaseSensitive(t1.messageText, t2.messageText);
+        if (res) {
+            return res;
+        }
+        if (!t1.next && !t2.next) {
+            return Comparison.EqualTo;
+        }
+        if (!t1.next) {
+            return Comparison.LessThan;
+        }
+        if (!t2.next) {
+            return Comparison.GreaterThan;
+        }
+        const len = Math.min(t1.next.length, t2.next.length);
+        for (let i = 0; i < len; i++) {
+            res = compareMessageText(t1.next[i], t2.next[i]);
             if (res) {
                 return res;
             }
-
-            text1 = isString(text1) ? undefined : text1.next;
-            text2 = isString(text2) ? undefined : text2.next;
         }
-
-        if (!text1 && !text2) {
-            // if the chains are done, then these messages are the same.
-            return Comparison.EqualTo;
+        if (t1.next.length < t2.next.length) {
+            return Comparison.LessThan;
         }
-
-        // We still have one chain remaining.  The shorter chain should come first.
-        return text1 ? Comparison.GreaterThan : Comparison.LessThan;
+        else if (t1.next.length > t2.next.length) {
+            return Comparison.GreaterThan;
+        }
+        return Comparison.EqualTo;
     }
 
     export function getEmitScriptTarget(compilerOptions: CompilerOptions) {
@@ -8105,7 +8117,7 @@ namespace ts {
             visitDirectory(basePath, combinePaths(currentDirectory, basePath), depth);
         }
 
-        return flatten<string>(results);
+        return flatten(results);
 
         function visitDirectory(path: string, absolutePath: string, depth: number | undefined) {
             const canonicalPath = toCanonical(realpath(absolutePath));

src/harness/fourslash.ts

@@ -1497,13 +1497,7 @@ Actual: ${stringify(fullActual)}`);
                     const diagnostics = ts.getPreEmitDiagnostics(this.languageService.getProgram()!); // TODO: GH#18217
                     for (const diagnostic of diagnostics) {
                         if (!ts.isString(diagnostic.messageText)) {
-                            let chainedMessage: ts.DiagnosticMessageChain | undefined = diagnostic.messageText;
-                            let indentation = " ";
-                            while (chainedMessage) {
-                                resultString += indentation + chainedMessage.messageText + Harness.IO.newLine();
-                                chainedMessage = chainedMessage.next;
-                                indentation = indentation + " ";
-                            }
+                            resultString += this.flattenChainedMessage(diagnostic.messageText);
                         }
                         else {
                             resultString += "  " + diagnostic.messageText + Harness.IO.newLine();
@@ -1521,6 +1515,17 @@ Actual: ${stringify(fullActual)}`);
             Harness.Baseline.runBaseline(ts.Debug.assertDefined(this.testData.globalOptions[MetadataOptionNames.baselineFile]), resultString);
         }
 
+        private flattenChainedMessage(diag: ts.DiagnosticMessageChain, indent = " ") {
+            let result = "";
+            result += indent + diag.messageText + Harness.IO.newLine();
+            if (diag.next) {
+                for (const kid of diag.next) {
+                    result += this.flattenChainedMessage(kid, indent + " ");
+                }
+            }
+            return result;
+        }
+
         public baselineQuickInfo() {
             const baselineFile = this.getBaselineFileName();
             Harness.Baseline.runBaseline(

tests/baselines/reference/api/tsserverlibrary.d.ts

@@ -2457,7 +2457,7 @@ declare namespace ts {
         messageText: string;
         category: DiagnosticCategory;
         code: number;
-        next?: DiagnosticMessageChain;
+        next?: DiagnosticMessageChain[];
     }
     interface Diagnostic extends DiagnosticRelatedInformation {
         /** May store more in future. For now, this will simply be `true` to indicate when a diagnostic is an unused-identifier diagnostic. */
@@ -4277,7 +4277,7 @@ declare namespace ts {
     function formatDiagnostics(diagnostics: ReadonlyArray<Diagnostic>, host: FormatDiagnosticsHost): string;
     function formatDiagnostic(diagnostic: Diagnostic, host: FormatDiagnosticsHost): string;
     function formatDiagnosticsWithColorAndContext(diagnostics: ReadonlyArray<Diagnostic>, host: FormatDiagnosticsHost): string;
-    function flattenDiagnosticMessageText(messageText: string | DiagnosticMessageChain | undefined, newLine: string): string;
+    function flattenDiagnosticMessageText(diag: string | DiagnosticMessageChain | undefined, newLine: string, indent?: number): string;
     function getConfigFileParsingDiagnostics(configFileParseResult: ParsedCommandLine): ReadonlyArray<Diagnostic>;
     /**
      * Create a new 'Program' instance. A Program is an immutable collection of 'SourceFile's and a 'CompilerOptions'

tests/baselines/reference/api/typescript.d.ts

@@ -2457,7 +2457,7 @@ declare namespace ts {
         messageText: string;
         category: DiagnosticCategory;
         code: number;
-        next?: DiagnosticMessageChain;
+        next?: DiagnosticMessageChain[];
     }
     interface Diagnostic extends DiagnosticRelatedInformation {
         /** May store more in future. For now, this will simply be `true` to indicate when a diagnostic is an unused-identifier diagnostic. */
@@ -4277,7 +4277,7 @@ declare namespace ts {
     function formatDiagnostics(diagnostics: ReadonlyArray<Diagnostic>, host: FormatDiagnosticsHost): string;
     function formatDiagnostic(diagnostic: Diagnostic, host: FormatDiagnosticsHost): string;
     function formatDiagnosticsWithColorAndContext(diagnostics: ReadonlyArray<Diagnostic>, host: FormatDiagnosticsHost): string;
-    function flattenDiagnosticMessageText(messageText: string | DiagnosticMessageChain | undefined, newLine: string): string;
+    function flattenDiagnosticMessageText(diag: string | DiagnosticMessageChain | undefined, newLine: string, indent?: number): string;
     function getConfigFileParsingDiagnostics(configFileParseResult: ParsedCommandLine): ReadonlyArray<Diagnostic>;
     /**
      * Create a new 'Program' instance. A Program is an immutable collection of 'SourceFile's and a 'CompilerOptions'

tests/baselines/reference/bigintWithLib.errors.txt

@@ -1,9 +1,30 @@
 tests/cases/compiler/bigintWithLib.ts(4,1): error TS2350: Only a void function can be called with the 'new' keyword.
-tests/cases/compiler/bigintWithLib.ts(16,33): error TS2345: Argument of type 'number[]' is not assignable to parameter of type 'ArrayBuffer | SharedArrayBuffer'.
-  Type 'number[]' is missing the following properties from type 'SharedArrayBuffer': byteLength, [Symbol.species], [Symbol.toStringTag]
+tests/cases/compiler/bigintWithLib.ts(16,15): error TS2769: No overload matches this call.
+  Overload 1 of 3, '(length?: number): BigInt64Array', gave the following error.
+    Argument of type 'number[]' is not assignable to parameter of type 'number'.
+  Overload 2 of 3, '(array: Iterable<bigint>): BigInt64Array', gave the following error.
+    Argument of type 'number[]' is not assignable to parameter of type 'Iterable<bigint>'.
+      Types of property '[Symbol.iterator]' are incompatible.
+        Type '() => IterableIterator<number>' is not assignable to type '() => Iterator<bigint, any, undefined>'.
+          Type 'IterableIterator<number>' is not assignable to type 'Iterator<bigint, any, undefined>'.
+            Types of property 'next' are incompatible.
+              Type '(...args: [] | [undefined]) => IteratorResult<number, any>' is not assignable to type '(...args: [] | [undefined]) => IteratorResult<bigint, any>'.
+                Type 'IteratorResult<number, any>' is not assignable to type 'IteratorResult<bigint, any>'.
+                  Type 'IteratorYieldResult<number>' is not assignable to type 'IteratorResult<bigint, any>'.
+                    Type 'IteratorYieldResult<number>' is not assignable to type 'IteratorYieldResult<bigint>'.
+                      Type 'number' is not assignable to type 'bigint'.
+  Overload 3 of 3, '(buffer: ArrayBuffer | SharedArrayBuffer, byteOffset?: number, length?: number): BigInt64Array', gave the following error.
+    Argument of type 'number[]' is not assignable to parameter of type 'ArrayBuffer | SharedArrayBuffer'.
+      Type 'number[]' is missing the following properties from type 'SharedArrayBuffer': byteLength, [Symbol.species], [Symbol.toStringTag]
 tests/cases/compiler/bigintWithLib.ts(21,13): error TS2540: Cannot assign to 'length' because it is a read-only property.
-tests/cases/compiler/bigintWithLib.ts(28,35): error TS2345: Argument of type 'number[]' is not assignable to parameter of type 'ArrayBuffer | SharedArrayBuffer'.
-  Type 'number[]' is not assignable to type 'SharedArrayBuffer'.
+tests/cases/compiler/bigintWithLib.ts(28,16): error TS2769: No overload matches this call.
+  Overload 1 of 3, '(length?: number): BigUint64Array', gave the following error.
+    Argument of type 'number[]' is not assignable to parameter of type 'number'.
+  Overload 2 of 3, '(array: Iterable<bigint>): BigUint64Array', gave the following error.
+    Argument of type 'number[]' is not assignable to parameter of type 'Iterable<bigint>'.
+  Overload 3 of 3, '(buffer: ArrayBuffer | SharedArrayBuffer, byteOffset?: number, length?: number): BigUint64Array', gave the following error.
+    Argument of type 'number[]' is not assignable to parameter of type 'ArrayBuffer | SharedArrayBuffer'.
+      Type 'number[]' is not assignable to type 'SharedArrayBuffer'.
 tests/cases/compiler/bigintWithLib.ts(33,13): error TS2540: Cannot assign to 'length' because it is a read-only property.
 tests/cases/compiler/bigintWithLib.ts(40,25): error TS2345: Argument of type '-1' is not assignable to parameter of type 'bigint'.
 tests/cases/compiler/bigintWithLib.ts(43,26): error TS2345: Argument of type '123' is not assignable to parameter of type 'bigint'.
@@ -28,9 +49,24 @@ tests/cases/compiler/bigintWithLib.ts(43,26): error TS2345: Argument of type '12
     bigIntArray = new BigInt64Array(10);
     bigIntArray = new BigInt64Array([1n, 2n, 3n]);
     bigIntArray = new BigInt64Array([1, 2, 3]); // should error
-                                    ~~~~~~~~~
-!!! error TS2345: Argument of type 'number[]' is not assignable to parameter of type 'ArrayBuffer | SharedArrayBuffer'.
-!!! error TS2345:   Type 'number[]' is missing the following properties from type 'SharedArrayBuffer': byteLength, [Symbol.species], [Symbol.toStringTag]
+                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 3, '(length?: number): BigInt64Array', gave the following error.
+!!! error TS2769:     Argument of type 'number[]' is not assignable to parameter of type 'number'.
+!!! error TS2769:   Overload 2 of 3, '(array: Iterable<bigint>): BigInt64Array', gave the following error.
+!!! error TS2769:     Argument of type 'number[]' is not assignable to parameter of type 'Iterable<bigint>'.
+!!! error TS2769:       Types of property '[Symbol.iterator]' are incompatible.
+!!! error TS2769:         Type '() => IterableIterator<number>' is not assignable to type '() => Iterator<bigint, any, undefined>'.
+!!! error TS2769:           Type 'IterableIterator<number>' is not assignable to type 'Iterator<bigint, any, undefined>'.
+!!! error TS2769:             Types of property 'next' are incompatible.
+!!! error TS2769:               Type '(...args: [] | [undefined]) => IteratorResult<number, any>' is not assignable to type '(...args: [] | [undefined]) => IteratorResult<bigint, any>'.
+!!! error TS2769:                 Type 'IteratorResult<number, any>' is not assignable to type 'IteratorResult<bigint, any>'.
+!!! error TS2769:                   Type 'IteratorYieldResult<number>' is not assignable to type 'IteratorResult<bigint, any>'.
+!!! error TS2769:                     Type 'IteratorYieldResult<number>' is not assignable to type 'IteratorYieldResult<bigint>'.
+!!! error TS2769:                       Type 'number' is not assignable to type 'bigint'.
+!!! error TS2769:   Overload 3 of 3, '(buffer: ArrayBuffer | SharedArrayBuffer, byteOffset?: number, length?: number): BigInt64Array', gave the following error.
+!!! error TS2769:     Argument of type 'number[]' is not assignable to parameter of type 'ArrayBuffer | SharedArrayBuffer'.
+!!! error TS2769:       Type 'number[]' is missing the following properties from type 'SharedArrayBuffer': byteLength, [Symbol.species], [Symbol.toStringTag]
     bigIntArray = new BigInt64Array(new ArrayBuffer(80));
     bigIntArray = new BigInt64Array(new ArrayBuffer(80), 8);
     bigIntArray = new BigInt64Array(new ArrayBuffer(80), 8, 3);
@@ -45,9 +81,15 @@ tests/cases/compiler/bigintWithLib.ts(43,26): error TS2345: Argument of type '12
     bigUintArray = new BigUint64Array(10);
     bigUintArray = new BigUint64Array([1n, 2n, 3n]);
     bigUintArray = new BigUint64Array([1, 2, 3]); // should error
-                                      ~~~~~~~~~
-!!! error TS2345: Argument of type 'number[]' is not assignable to parameter of type 'ArrayBuffer | SharedArrayBuffer'.
-!!! error TS2345:   Type 'number[]' is not assignable to type 'SharedArrayBuffer'.
+                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 3, '(length?: number): BigUint64Array', gave the following error.
+!!! error TS2769:     Argument of type 'number[]' is not assignable to parameter of type 'number'.
+!!! error TS2769:   Overload 2 of 3, '(array: Iterable<bigint>): BigUint64Array', gave the following error.
+!!! error TS2769:     Argument of type 'number[]' is not assignable to parameter of type 'Iterable<bigint>'.
+!!! error TS2769:   Overload 3 of 3, '(buffer: ArrayBuffer | SharedArrayBuffer, byteOffset?: number, length?: number): BigUint64Array', gave the following error.
+!!! error TS2769:     Argument of type 'number[]' is not assignable to parameter of type 'ArrayBuffer | SharedArrayBuffer'.
+!!! error TS2769:       Type 'number[]' is not assignable to type 'SharedArrayBuffer'.
     bigUintArray = new BigUint64Array(new ArrayBuffer(80));
     bigUintArray = new BigUint64Array(new ArrayBuffer(80), 8);
     bigUintArray = new BigUint64Array(new ArrayBuffer(80), 8, 3);

tests/baselines/reference/checkJsxChildrenCanBeTupleType.errors.txt

@@ -1,8 +1,14 @@
-tests/cases/conformance/jsx/checkJsxChildrenCanBeTupleType.tsx(17,18): error TS2322: Type '{ children: [Element, Element, Element]; }' is not assignable to type 'Readonly<ResizablePanelProps>'.
-  Types of property 'children' are incompatible.
-    Type '[Element, Element, Element]' is not assignable to type '[ReactNode, ReactNode]'.
-      Types of property 'length' are incompatible.
-        Type '3' is not assignable to type '2'.
+tests/cases/conformance/jsx/checkJsxChildrenCanBeTupleType.tsx(17,17): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(props: Readonly<ResizablePanelProps>): ResizablePanel', gave the following error.
+    Type '{ children: [Element, Element, Element]; }' is not assignable to type 'Readonly<ResizablePanelProps>'.
+      Types of property 'children' are incompatible.
+        Type '[Element, Element, Element]' is not assignable to type '[ReactNode, ReactNode]'.
+          Types of property 'length' are incompatible.
+            Type '3' is not assignable to type '2'.
+  Overload 2 of 2, '(props: ResizablePanelProps, context?: any): ResizablePanel', gave the following error.
+    Type '{ children: [Element, Element, Element]; }' is not assignable to type 'Readonly<ResizablePanelProps>'.
+      Types of property 'children' are incompatible.
+        Type '[Element, Element, Element]' is not assignable to type '[ReactNode, ReactNode]'.
 
 
 ==== tests/cases/conformance/jsx/checkJsxChildrenCanBeTupleType.tsx (1 errors) ====
@@ -23,12 +29,18 @@ tests/cases/conformance/jsx/checkJsxChildrenCanBeTupleType.tsx(17,18): error TS2
     </ResizablePanel>
     
     const testErr = <ResizablePanel>
-                     ~~~~~~~~~~~~~~
-!!! error TS2322: Type '{ children: [Element, Element, Element]; }' is not assignable to type 'Readonly<ResizablePanelProps>'.
-!!! error TS2322:   Types of property 'children' are incompatible.
-!!! error TS2322:     Type '[Element, Element, Element]' is not assignable to type '[ReactNode, ReactNode]'.
-!!! error TS2322:       Types of property 'length' are incompatible.
-!!! error TS2322:         Type '3' is not assignable to type '2'.
+                    ~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(props: Readonly<ResizablePanelProps>): ResizablePanel', gave the following error.
+!!! error TS2769:     Type '{ children: [Element, Element, Element]; }' is not assignable to type 'Readonly<ResizablePanelProps>'.
+!!! error TS2769:       Types of property 'children' are incompatible.
+!!! error TS2769:         Type '[Element, Element, Element]' is not assignable to type '[ReactNode, ReactNode]'.
+!!! error TS2769:           Types of property 'length' are incompatible.
+!!! error TS2769:             Type '3' is not assignable to type '2'.
+!!! error TS2769:   Overload 2 of 2, '(props: ResizablePanelProps, context?: any): ResizablePanel', gave the following error.
+!!! error TS2769:     Type '{ children: [Element, Element, Element]; }' is not assignable to type 'Readonly<ResizablePanelProps>'.
+!!! error TS2769:       Types of property 'children' are incompatible.
+!!! error TS2769:         Type '[Element, Element, Element]' is not assignable to type '[ReactNode, ReactNode]'.
       <div />
       <div />
       <div />

tests/baselines/reference/constructorOverloads1.errors.txt

@@ -2,8 +2,16 @@ tests/cases/compiler/constructorOverloads1.ts(2,5): error TS2392: Multiple const
 tests/cases/compiler/constructorOverloads1.ts(3,5): error TS2392: Multiple constructor implementations are not allowed.
 tests/cases/compiler/constructorOverloads1.ts(4,5): error TS2392: Multiple constructor implementations are not allowed.
 tests/cases/compiler/constructorOverloads1.ts(7,5): error TS2392: Multiple constructor implementations are not allowed.
-tests/cases/compiler/constructorOverloads1.ts(16,18): error TS2345: Argument of type 'Foo' is not assignable to parameter of type 'number'.
-tests/cases/compiler/constructorOverloads1.ts(17,18): error TS2345: Argument of type 'any[]' is not assignable to parameter of type 'number'.
+tests/cases/compiler/constructorOverloads1.ts(16,10): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(s: string): Foo', gave the following error.
+    Argument of type 'Foo' is not assignable to parameter of type 'string'.
+  Overload 2 of 2, '(n: number): Foo', gave the following error.
+    Argument of type 'Foo' is not assignable to parameter of type 'number'.
+tests/cases/compiler/constructorOverloads1.ts(17,10): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(s: string): Foo', gave the following error.
+    Argument of type 'any[]' is not assignable to parameter of type 'string'.
+  Overload 2 of 2, '(n: number): Foo', gave the following error.
+    Argument of type 'any[]' is not assignable to parameter of type 'number'.
 
 
 ==== tests/cases/compiler/constructorOverloads1.ts (6 errors) ====
@@ -35,11 +43,19 @@ tests/cases/compiler/constructorOverloads1.ts(17,18): error TS2345: Argument of
     var f1 = new Foo("hey");
     var f2 = new Foo(0);
     var f3 = new Foo(f1);
-                     ~~
-!!! error TS2345: Argument of type 'Foo' is not assignable to parameter of type 'number'.
+             ~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(s: string): Foo', gave the following error.
+!!! error TS2769:     Argument of type 'Foo' is not assignable to parameter of type 'string'.
+!!! error TS2769:   Overload 2 of 2, '(n: number): Foo', gave the following error.
+!!! error TS2769:     Argument of type 'Foo' is not assignable to parameter of type 'number'.
     var f4 = new Foo([f1,f2,f3]);
-                     ~~~~~~~~~~
-!!! error TS2345: Argument of type 'any[]' is not assignable to parameter of type 'number'.
+             ~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(s: string): Foo', gave the following error.
+!!! error TS2769:     Argument of type 'any[]' is not assignable to parameter of type 'string'.
+!!! error TS2769:   Overload 2 of 2, '(n: number): Foo', gave the following error.
+!!! error TS2769:     Argument of type 'any[]' is not assignable to parameter of type 'number'.
     
     f1.bar1();
     f1.bar2();

tests/baselines/reference/contextuallyTypedStringLiteralsInJsxAttributes02.errors.txt

@@ -1,11 +1,31 @@
-tests/cases/conformance/types/contextualTypes/jsxAttributes/file.tsx(27,13): error TS2322: Type '{ extra: true; onClick: (k: "left" | "right") => void; }' is not assignable to type 'IntrinsicAttributes & LinkProps'.
-  Property 'extra' does not exist on type 'IntrinsicAttributes & LinkProps'.
-tests/cases/conformance/types/contextualTypes/jsxAttributes/file.tsx(28,13): error TS2322: Type '{ onClick: (k: any) => void; extra: true; }' is not assignable to type 'IntrinsicAttributes & LinkProps'.
-  Property 'onClick' does not exist on type 'IntrinsicAttributes & LinkProps'.
-tests/cases/conformance/types/contextualTypes/jsxAttributes/file.tsx(29,13): error TS2322: Type '{ extra: true; goTo: "home"; }' is not assignable to type 'IntrinsicAttributes & LinkProps'.
-  Property 'extra' does not exist on type 'IntrinsicAttributes & LinkProps'.
-tests/cases/conformance/types/contextualTypes/jsxAttributes/file.tsx(30,13): error TS2322: Type '{ goTo: "home"; extra: true; }' is not assignable to type 'IntrinsicAttributes & LinkProps'.
-  Property 'extra' does not exist on type 'IntrinsicAttributes & LinkProps'.
+tests/cases/conformance/types/contextualTypes/jsxAttributes/file.tsx(27,12): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(buttonProps: ButtonProps): Element', gave the following error.
+    Type '{ extra: true; onClick: (k: "left" | "right") => void; }' is not assignable to type 'IntrinsicAttributes & ButtonProps'.
+      Property 'extra' does not exist on type 'IntrinsicAttributes & ButtonProps'.
+  Overload 2 of 2, '(linkProps: LinkProps): Element', gave the following error.
+    Type '{ extra: true; onClick: (k: "left" | "right") => void; }' is not assignable to type 'IntrinsicAttributes & LinkProps'.
+      Property 'extra' does not exist on type 'IntrinsicAttributes & LinkProps'.
+tests/cases/conformance/types/contextualTypes/jsxAttributes/file.tsx(28,12): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(buttonProps: ButtonProps): Element', gave the following error.
+    Type '{ onClick: (k: "left" | "right") => void; extra: true; }' is not assignable to type 'IntrinsicAttributes & ButtonProps'.
+      Property 'extra' does not exist on type 'IntrinsicAttributes & ButtonProps'.
+  Overload 2 of 2, '(linkProps: LinkProps): Element', gave the following error.
+    Type '{ onClick: (k: "left" | "right") => void; extra: true; }' is not assignable to type 'IntrinsicAttributes & LinkProps'.
+      Property 'onClick' does not exist on type 'IntrinsicAttributes & LinkProps'.
+tests/cases/conformance/types/contextualTypes/jsxAttributes/file.tsx(29,12): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(buttonProps: ButtonProps): Element', gave the following error.
+    Type '{ extra: true; goTo: string; }' is not assignable to type 'IntrinsicAttributes & ButtonProps'.
+      Property 'extra' does not exist on type 'IntrinsicAttributes & ButtonProps'.
+  Overload 2 of 2, '(linkProps: LinkProps): Element', gave the following error.
+    Type '{ extra: true; goTo: "home"; }' is not assignable to type 'IntrinsicAttributes & LinkProps'.
+      Property 'extra' does not exist on type 'IntrinsicAttributes & LinkProps'.
+tests/cases/conformance/types/contextualTypes/jsxAttributes/file.tsx(30,12): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(buttonProps: ButtonProps): Element', gave the following error.
+    Type '{ goTo: string; extra: true; }' is not assignable to type 'IntrinsicAttributes & ButtonProps'.
+      Property 'goTo' does not exist on type 'IntrinsicAttributes & ButtonProps'.
+  Overload 2 of 2, '(linkProps: LinkProps): Element', gave the following error.
+    Type '{ goTo: "home"; extra: true; }' is not assignable to type 'IntrinsicAttributes & LinkProps'.
+      Property 'extra' does not exist on type 'IntrinsicAttributes & LinkProps'.
 tests/cases/conformance/types/contextualTypes/jsxAttributes/file.tsx(33,13): error TS2322: Type '{ extra: true; onClick: (k: "left" | "right") => void; }' is not assignable to type 'IntrinsicAttributes & ButtonProps'.
   Property 'extra' does not exist on type 'IntrinsicAttributes & ButtonProps'.
 tests/cases/conformance/types/contextualTypes/jsxAttributes/file.tsx(36,13): error TS2322: Type '{ extra: true; goTo: "home"; }' is not assignable to type 'IntrinsicAttributes & LinkProps'.
@@ -40,21 +60,41 @@ tests/cases/conformance/types/contextualTypes/jsxAttributes/file.tsx(36,13): err
     }
     
     const b0 = <MainButton {...{onClick: (k) => {console.log(k)}}} extra />;  // k has type "left" | "right"
-                ~~~~~~~~~~
-!!! error TS2322: Type '{ extra: true; onClick: (k: "left" | "right") => void; }' is not assignable to type 'IntrinsicAttributes & LinkProps'.
-!!! error TS2322:   Property 'extra' does not exist on type 'IntrinsicAttributes & LinkProps'.
+               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(buttonProps: ButtonProps): Element', gave the following error.
+!!! error TS2769:     Type '{ extra: true; onClick: (k: "left" | "right") => void; }' is not assignable to type 'IntrinsicAttributes & ButtonProps'.
+!!! error TS2769:       Property 'extra' does not exist on type 'IntrinsicAttributes & ButtonProps'.
+!!! error TS2769:   Overload 2 of 2, '(linkProps: LinkProps): Element', gave the following error.
+!!! error TS2769:     Type '{ extra: true; onClick: (k: "left" | "right") => void; }' is not assignable to type 'IntrinsicAttributes & LinkProps'.
+!!! error TS2769:       Property 'extra' does not exist on type 'IntrinsicAttributes & LinkProps'.
     const b2 = <MainButton onClick={(k)=>{console.log(k)}} extra />;  // k has type "left" | "right"
-                ~~~~~~~~~~
-!!! error TS2322: Type '{ onClick: (k: any) => void; extra: true; }' is not assignable to type 'IntrinsicAttributes & LinkProps'.
-!!! error TS2322:   Property 'onClick' does not exist on type 'IntrinsicAttributes & LinkProps'.
+               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(buttonProps: ButtonProps): Element', gave the following error.
+!!! error TS2769:     Type '{ onClick: (k: "left" | "right") => void; extra: true; }' is not assignable to type 'IntrinsicAttributes & ButtonProps'.
+!!! error TS2769:       Property 'extra' does not exist on type 'IntrinsicAttributes & ButtonProps'.
+!!! error TS2769:   Overload 2 of 2, '(linkProps: LinkProps): Element', gave the following error.
+!!! error TS2769:     Type '{ onClick: (k: "left" | "right") => void; extra: true; }' is not assignable to type 'IntrinsicAttributes & LinkProps'.
+!!! error TS2769:       Property 'onClick' does not exist on type 'IntrinsicAttributes & LinkProps'.
     const b3 = <MainButton {...{goTo:"home"}} extra />;  // goTo has type"home" | "contact"
-                ~~~~~~~~~~
-!!! error TS2322: Type '{ extra: true; goTo: "home"; }' is not assignable to type 'IntrinsicAttributes & LinkProps'.
-!!! error TS2322:   Property 'extra' does not exist on type 'IntrinsicAttributes & LinkProps'.
+               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(buttonProps: ButtonProps): Element', gave the following error.
+!!! error TS2769:     Type '{ extra: true; goTo: string; }' is not assignable to type 'IntrinsicAttributes & ButtonProps'.
+!!! error TS2769:       Property 'extra' does not exist on type 'IntrinsicAttributes & ButtonProps'.
+!!! error TS2769:   Overload 2 of 2, '(linkProps: LinkProps): Element', gave the following error.
+!!! error TS2769:     Type '{ extra: true; goTo: "home"; }' is not assignable to type 'IntrinsicAttributes & LinkProps'.
+!!! error TS2769:       Property 'extra' does not exist on type 'IntrinsicAttributes & LinkProps'.
     const b4 = <MainButton goTo="home" extra />;  // goTo has type "home" | "contact"
-                ~~~~~~~~~~
-!!! error TS2322: Type '{ goTo: "home"; extra: true; }' is not assignable to type 'IntrinsicAttributes & LinkProps'.
-!!! error TS2322:   Property 'extra' does not exist on type 'IntrinsicAttributes & LinkProps'.
+               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(buttonProps: ButtonProps): Element', gave the following error.
+!!! error TS2769:     Type '{ goTo: string; extra: true; }' is not assignable to type 'IntrinsicAttributes & ButtonProps'.
+!!! error TS2769:       Property 'goTo' does not exist on type 'IntrinsicAttributes & ButtonProps'.
+!!! error TS2769:   Overload 2 of 2, '(linkProps: LinkProps): Element', gave the following error.
+!!! error TS2769:     Type '{ goTo: "home"; extra: true; }' is not assignable to type 'IntrinsicAttributes & LinkProps'.
+!!! error TS2769:       Property 'extra' does not exist on type 'IntrinsicAttributes & LinkProps'.
     
     export function NoOverload(buttonProps: ButtonProps): JSX.Element { return undefined }
     const c1 = <NoOverload  {...{onClick: (k) => {console.log(k)}}} extra />;  // k has type any

tests/baselines/reference/contextuallyTypedStringLiteralsInJsxAttributes02.types

@@ -81,14 +81,14 @@ const b2 = <MainButton onClick={(k)=>{console.log(k)}} extra />;  // k has type
 >b2 : JSX.Element
 ><MainButton onClick={(k)=>{console.log(k)}} extra /> : JSX.Element
 >MainButton : { (buttonProps: ButtonProps): JSX.Element; (linkProps: LinkProps): JSX.Element; }
->onClick : (k: any) => void
->(k)=>{console.log(k)} : (k: any) => void
->k : any
+>onClick : (k: "left" | "right") => void
+>(k)=>{console.log(k)} : (k: "left" | "right") => void
+>k : "left" | "right"
 >console.log(k) : void
 >console.log : (message?: any, ...optionalParams: any[]) => void
 >console : Console
 >log : (message?: any, ...optionalParams: any[]) => void
->k : any
+>k : "left" | "right"
 >extra : true
 
 const b3 = <MainButton {...{goTo:"home"}} extra />;  // goTo has type"home" | "contact"

tests/baselines/reference/controlFlowIterationErrors.errors.txt

@@ -2,10 +2,20 @@ tests/cases/conformance/controlFlow/controlFlowIterationErrors.ts(11,17): error
   Type 'number' is not assignable to type 'string'.
 tests/cases/conformance/controlFlow/controlFlowIterationErrors.ts(22,17): error TS2345: Argument of type 'string | number' is not assignable to parameter of type 'string'.
   Type 'number' is not assignable to type 'string'.
-tests/cases/conformance/controlFlow/controlFlowIterationErrors.ts(34,17): error TS2345: Argument of type 'string | number' is not assignable to parameter of type 'number'.
-  Type 'string' is not assignable to type 'number'.
-tests/cases/conformance/controlFlow/controlFlowIterationErrors.ts(45,17): error TS2345: Argument of type 'string | number' is not assignable to parameter of type 'number'.
-  Type 'string' is not assignable to type 'number'.
+tests/cases/conformance/controlFlow/controlFlowIterationErrors.ts(34,13): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(x: string): number', gave the following error.
+    Argument of type 'string | number' is not assignable to parameter of type 'string'.
+      Type 'number' is not assignable to type 'string'.
+  Overload 2 of 2, '(x: number): string', gave the following error.
+    Argument of type 'string | number' is not assignable to parameter of type 'number'.
+      Type 'string' is not assignable to type 'number'.
+tests/cases/conformance/controlFlow/controlFlowIterationErrors.ts(45,13): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(x: string): number', gave the following error.
+    Argument of type 'string | number' is not assignable to parameter of type 'string'.
+      Type 'number' is not assignable to type 'string'.
+  Overload 2 of 2, '(x: number): string', gave the following error.
+    Argument of type 'string | number' is not assignable to parameter of type 'number'.
+      Type 'string' is not assignable to type 'number'.
 
 
 ==== tests/cases/conformance/controlFlow/controlFlowIterationErrors.ts (4 errors) ====
@@ -49,9 +59,14 @@ tests/cases/conformance/controlFlow/controlFlowIterationErrors.ts(45,17): error
         x = "";
         while (cond) {
             x = foo(x);
-                    ~
-!!! error TS2345: Argument of type 'string | number' is not assignable to parameter of type 'number'.
-!!! error TS2345:   Type 'string' is not assignable to type 'number'.
+                ~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(x: string): number', gave the following error.
+!!! error TS2769:     Argument of type 'string | number' is not assignable to parameter of type 'string'.
+!!! error TS2769:       Type 'number' is not assignable to type 'string'.
+!!! error TS2769:   Overload 2 of 2, '(x: number): string', gave the following error.
+!!! error TS2769:     Argument of type 'string | number' is not assignable to parameter of type 'number'.
+!!! error TS2769:       Type 'string' is not assignable to type 'number'.
             x;
         }
         x;
@@ -63,9 +78,14 @@ tests/cases/conformance/controlFlow/controlFlowIterationErrors.ts(45,17): error
         while (cond) {
             x;
             x = foo(x);
-                    ~
-!!! error TS2345: Argument of type 'string | number' is not assignable to parameter of type 'number'.
-!!! error TS2345:   Type 'string' is not assignable to type 'number'.
+                ~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(x: string): number', gave the following error.
+!!! error TS2769:     Argument of type 'string | number' is not assignable to parameter of type 'string'.
+!!! error TS2769:       Type 'number' is not assignable to type 'string'.
+!!! error TS2769:   Overload 2 of 2, '(x: number): string', gave the following error.
+!!! error TS2769:     Argument of type 'string | number' is not assignable to parameter of type 'number'.
+!!! error TS2769:       Type 'string' is not assignable to type 'number'.
         }
         x;
     }

tests/baselines/reference/destructuringTuple.errors.txt

@@ -1,5 +1,9 @@
 tests/cases/compiler/destructuringTuple.ts(11,8): error TS2493: Tuple type '[]' of length '0' has no element at index '0'.
-tests/cases/compiler/destructuringTuple.ts(11,60): error TS2345: Argument of type 'number' is not assignable to parameter of type 'ConcatArray<never>'.
+tests/cases/compiler/destructuringTuple.ts(11,48): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(...items: ConcatArray<never>[]): never[]', gave the following error.
+    Argument of type 'number' is not assignable to parameter of type 'ConcatArray<never>'.
+  Overload 2 of 2, '(...items: ConcatArray<never>[]): never[]', gave the following error.
+    Argument of type 'number' is not assignable to parameter of type 'ConcatArray<never>'.
 
 
 ==== tests/cases/compiler/destructuringTuple.ts (2 errors) ====
@@ -16,8 +20,12 @@ tests/cases/compiler/destructuringTuple.ts(11,60): error TS2345: Argument of typ
     const [oops1] = [1, 2, 3].reduce((accu, el) => accu.concat(el), []);
            ~~~~~
 !!! error TS2493: Tuple type '[]' of length '0' has no element at index '0'.
-                                                               ~~
-!!! error TS2345: Argument of type 'number' is not assignable to parameter of type 'ConcatArray<never>'.
+                                                   ~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(...items: ConcatArray<never>[]): never[]', gave the following error.
+!!! error TS2769:     Argument of type 'number' is not assignable to parameter of type 'ConcatArray<never>'.
+!!! error TS2769:   Overload 2 of 2, '(...items: ConcatArray<never>[]): never[]', gave the following error.
+!!! error TS2769:     Argument of type 'number' is not assignable to parameter of type 'ConcatArray<never>'.
     
     const [oops2] = [1, 2, 3].reduce((acc: number[], e) => acc.concat(e), []);
     

tests/baselines/reference/for-of39.errors.txt

@@ -1,10 +1,42 @@
-tests/cases/conformance/es6/for-ofStatements/for-of39.ts(1,37): error TS2322: Type 'number' is not assignable to type 'boolean'.
+tests/cases/conformance/es6/for-ofStatements/for-of39.ts(1,11): error TS2769: No overload matches this call.
+  Overload 1 of 3, '(iterable: Iterable<readonly [string, boolean]>): Map<string, boolean>', gave the following error.
+    Argument of type '([string, number] | [string, true])[]' is not assignable to parameter of type 'Iterable<readonly [string, boolean]>'.
+      Types of property '[Symbol.iterator]' are incompatible.
+        Type '() => IterableIterator<[string, number] | [string, true]>' is not assignable to type '() => Iterator<readonly [string, boolean], any, undefined>'.
+          Type 'IterableIterator<[string, number] | [string, true]>' is not assignable to type 'Iterator<readonly [string, boolean], any, undefined>'.
+            Types of property 'next' are incompatible.
+              Type '(...args: [] | [undefined]) => IteratorResult<[string, number] | [string, true], any>' is not assignable to type '(...args: [] | [undefined]) => IteratorResult<readonly [string, boolean], any>'.
+                Type 'IteratorResult<[string, number] | [string, true], any>' is not assignable to type 'IteratorResult<readonly [string, boolean], any>'.
+                  Type 'IteratorYieldResult<[string, number] | [string, true]>' is not assignable to type 'IteratorResult<readonly [string, boolean], any>'.
+                    Type 'IteratorYieldResult<[string, number] | [string, true]>' is not assignable to type 'IteratorYieldResult<readonly [string, boolean]>'.
+                      Type '[string, number] | [string, true]' is not assignable to type 'readonly [string, boolean]'.
+                        Type '[string, number]' is not assignable to type 'readonly [string, boolean]'.
+                          Types of property '1' are incompatible.
+                            Type 'number' is not assignable to type 'boolean'.
+  Overload 2 of 3, '(entries?: readonly (readonly [string, boolean])[]): Map<string, boolean>', gave the following error.
+    Type 'number' is not assignable to type 'boolean'.
 
 
 ==== tests/cases/conformance/es6/for-ofStatements/for-of39.ts (1 errors) ====
     var map = new Map([["", true], ["", 0]]);
-                                        ~
-!!! error TS2322: Type 'number' is not assignable to type 'boolean'.
+              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 3, '(iterable: Iterable<readonly [string, boolean]>): Map<string, boolean>', gave the following error.
+!!! error TS2769:     Argument of type '([string, number] | [string, true])[]' is not assignable to parameter of type 'Iterable<readonly [string, boolean]>'.
+!!! error TS2769:       Types of property '[Symbol.iterator]' are incompatible.
+!!! error TS2769:         Type '() => IterableIterator<[string, number] | [string, true]>' is not assignable to type '() => Iterator<readonly [string, boolean], any, undefined>'.
+!!! error TS2769:           Type 'IterableIterator<[string, number] | [string, true]>' is not assignable to type 'Iterator<readonly [string, boolean], any, undefined>'.
+!!! error TS2769:             Types of property 'next' are incompatible.
+!!! error TS2769:               Type '(...args: [] | [undefined]) => IteratorResult<[string, number] | [string, true], any>' is not assignable to type '(...args: [] | [undefined]) => IteratorResult<readonly [string, boolean], any>'.
+!!! error TS2769:                 Type 'IteratorResult<[string, number] | [string, true], any>' is not assignable to type 'IteratorResult<readonly [string, boolean], any>'.
+!!! error TS2769:                   Type 'IteratorYieldResult<[string, number] | [string, true]>' is not assignable to type 'IteratorResult<readonly [string, boolean], any>'.
+!!! error TS2769:                     Type 'IteratorYieldResult<[string, number] | [string, true]>' is not assignable to type 'IteratorYieldResult<readonly [string, boolean]>'.
+!!! error TS2769:                       Type '[string, number] | [string, true]' is not assignable to type 'readonly [string, boolean]'.
+!!! error TS2769:                         Type '[string, number]' is not assignable to type 'readonly [string, boolean]'.
+!!! error TS2769:                           Types of property '1' are incompatible.
+!!! error TS2769:                             Type 'number' is not assignable to type 'boolean'.
+!!! error TS2769:   Overload 2 of 3, '(entries?: readonly (readonly [string, boolean])[]): Map<string, boolean>', gave the following error.
+!!! error TS2769:     Type 'number' is not assignable to type 'boolean'.
     for (var [k, v] of map) {
         k;
         v;

tests/baselines/reference/functionOverloads2.errors.txt

@@ -1,4 +1,8 @@
-tests/cases/compiler/functionOverloads2.ts(4,13): error TS2345: Argument of type 'true' is not assignable to parameter of type 'number'.
+tests/cases/compiler/functionOverloads2.ts(4,9): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(bar: string): string', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'string'.
+  Overload 2 of 2, '(bar: number): number', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'number'.
 
 
 ==== tests/cases/compiler/functionOverloads2.ts (1 errors) ====
@@ -6,5 +10,9 @@ tests/cases/compiler/functionOverloads2.ts(4,13): error TS2345: Argument of type
     function foo(bar: number): number;
     function foo(bar: any): any { return bar };
     var x = foo(true);
-                ~~~~
-!!! error TS2345: Argument of type 'true' is not assignable to parameter of type 'number'.
+            ~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(bar: string): string', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'string'.
+!!! error TS2769:   Overload 2 of 2, '(bar: number): number', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'number'.

tests/baselines/reference/functionOverloads40.errors.txt

@@ -1,4 +1,8 @@
-tests/cases/compiler/functionOverloads40.ts(4,15): error TS2322: Type 'string' is not assignable to type 'boolean'.
+tests/cases/compiler/functionOverloads40.ts(4,9): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(bar: { a: number; }[]): string', gave the following error.
+    Type 'string' is not assignable to type 'number'.
+  Overload 2 of 2, '(bar: { a: boolean; }[]): number', gave the following error.
+    Type 'string' is not assignable to type 'boolean'.
 
 
 ==== tests/cases/compiler/functionOverloads40.ts (1 errors) ====
@@ -6,7 +10,12 @@ tests/cases/compiler/functionOverloads40.ts(4,15): error TS2322: Type 'string' i
     function foo(bar:{a:boolean;}[]):number;
     function foo(bar:{a:any;}[]):any{ return bar }
     var x = foo([{a:'bar'}]);
-                  ~
-!!! error TS2322: Type 'string' is not assignable to type 'boolean'.
+            ~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(bar: { a: number; }[]): string', gave the following error.
+!!! error TS2769:     Type 'string' is not assignable to type 'number'.
+!!! error TS2769:   Overload 2 of 2, '(bar: { a: boolean; }[]): number', gave the following error.
+!!! error TS2769:     Type 'string' is not assignable to type 'boolean'.
+!!! related TS6500 tests/cases/compiler/functionOverloads40.ts:1:19: The expected type comes from property 'a' which is declared here on type '{ a: number; }'
 !!! related TS6500 tests/cases/compiler/functionOverloads40.ts:2:19: The expected type comes from property 'a' which is declared here on type '{ a: boolean; }'
     

tests/baselines/reference/functionOverloads41.errors.txt

@@ -1,4 +1,8 @@
-tests/cases/compiler/functionOverloads41.ts(4,14): error TS2741: Property 'a' is missing in type '{}' but required in type '{ a: boolean; }'.
+tests/cases/compiler/functionOverloads41.ts(4,9): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(bar: { a: number; }[]): string', gave the following error.
+    Property 'a' is missing in type '{}' but required in type '{ a: number; }'.
+  Overload 2 of 2, '(bar: { a: boolean; }[]): number', gave the following error.
+    Property 'a' is missing in type '{}' but required in type '{ a: boolean; }'.
 
 
 ==== tests/cases/compiler/functionOverloads41.ts (1 errors) ====
@@ -6,7 +10,12 @@ tests/cases/compiler/functionOverloads41.ts(4,14): error TS2741: Property 'a' is
     function foo(bar:{a:boolean;}[]):number;
     function foo(bar:{a:any;}[]):any{ return bar }
     var x = foo([{}]);
-                 ~~
-!!! error TS2741: Property 'a' is missing in type '{}' but required in type '{ a: boolean; }'.
+            ~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(bar: { a: number; }[]): string', gave the following error.
+!!! error TS2769:     Property 'a' is missing in type '{}' but required in type '{ a: number; }'.
+!!! error TS2769:   Overload 2 of 2, '(bar: { a: boolean; }[]): number', gave the following error.
+!!! error TS2769:     Property 'a' is missing in type '{}' but required in type '{ a: boolean; }'.
+!!! related TS2728 tests/cases/compiler/functionOverloads41.ts:1:19: 'a' is declared here.
 !!! related TS2728 tests/cases/compiler/functionOverloads41.ts:2:19: 'a' is declared here.
     

tests/baselines/reference/genericCallToOverloadedMethodWithOverloadedArguments.errors.txt

@@ -1,15 +1,33 @@
 tests/cases/conformance/types/typeRelationships/typeInference/genericCallToOverloadedMethodWithOverloadedArguments.ts(23,38): error TS2345: Argument of type '{ (n: number): Promise<number>; (s: string): Promise<string>; }' is not assignable to parameter of type '(x: number) => Promise<string>'.
   Type 'Promise<number>' is not assignable to type 'Promise<string>'.
     Type 'number' is not assignable to type 'string'.
-tests/cases/conformance/types/typeRelationships/typeInference/genericCallToOverloadedMethodWithOverloadedArguments.ts(52,38): error TS2345: Argument of type '{ (n: number): Promise<number>; (s: string): Promise<string>; }' is not assignable to parameter of type '(x: number) => Promise<string>'.
-  Type 'Promise<number>' is not assignable to type 'Promise<string>'.
-    Type 'number' is not assignable to type 'string'.
-tests/cases/conformance/types/typeRelationships/typeInference/genericCallToOverloadedMethodWithOverloadedArguments.ts(68,38): error TS2345: Argument of type '{ (n: number): Promise<number>; (s: string): Promise<string>; }' is not assignable to parameter of type '(x: number) => Promise<string>'.
-  Type 'Promise<number>' is not assignable to type 'Promise<string>'.
-    Type 'number' is not assignable to type 'string'.
-tests/cases/conformance/types/typeRelationships/typeInference/genericCallToOverloadedMethodWithOverloadedArguments.ts(84,38): error TS2345: Argument of type '{ (n: number): Promise<number>; (s: string): Promise<string>; (b: boolean): Promise<boolean>; }' is not assignable to parameter of type '(x: number) => Promise<boolean>'.
-  Type 'Promise<number>' is not assignable to type 'Promise<boolean>'.
-    Type 'number' is not assignable to type 'boolean'.
+tests/cases/conformance/types/typeRelationships/typeInference/genericCallToOverloadedMethodWithOverloadedArguments.ts(52,22): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(cb: (x: number) => Promise<string>): Promise<string>', gave the following error.
+    Argument of type '{ (n: number): Promise<number>; (s: string): Promise<string>; }' is not assignable to parameter of type '(x: number) => Promise<string>'.
+      Type 'Promise<number>' is not assignable to type 'Promise<string>'.
+        Type 'number' is not assignable to type 'string'.
+  Overload 2 of 2, '(cb: (x: number) => Promise<string>, error?: (error: any) => Promise<string>): Promise<string>', gave the following error.
+    Argument of type '{ (n: number): Promise<number>; (s: string): Promise<string>; }' is not assignable to parameter of type '(x: number) => Promise<string>'.
+      Type 'Promise<number>' is not assignable to type 'Promise<string>'.
+tests/cases/conformance/types/typeRelationships/typeInference/genericCallToOverloadedMethodWithOverloadedArguments.ts(68,22): error TS2769: No overload matches this call.
+  Overload 1 of 3, '(cb: (x: number) => Promise<string>): Promise<string>', gave the following error.
+    Argument of type '{ (n: number): Promise<number>; (s: string): Promise<string>; }' is not assignable to parameter of type '(x: number) => Promise<string>'.
+      Type 'Promise<number>' is not assignable to type 'Promise<string>'.
+        Type 'number' is not assignable to type 'string'.
+  Overload 2 of 3, '(cb: (x: number) => Promise<string>, error?: (error: any) => Promise<string>): Promise<string>', gave the following error.
+    Argument of type '{ (n: number): Promise<number>; (s: string): Promise<string>; }' is not assignable to parameter of type '(x: number) => Promise<string>'.
+      Type 'Promise<number>' is not assignable to type 'Promise<string>'.
+  Overload 3 of 3, '(cb: (x: number) => Promise<string>, error?: (error: any) => string, progress?: (preservation: any) => void): Promise<string>', gave the following error.
+    Argument of type '{ (n: number): Promise<number>; (s: string): Promise<string>; }' is not assignable to parameter of type '(x: number) => Promise<string>'.
+      Type 'Promise<number>' is not assignable to type 'Promise<string>'.
+tests/cases/conformance/types/typeRelationships/typeInference/genericCallToOverloadedMethodWithOverloadedArguments.ts(84,22): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(cb: (x: number) => Promise<boolean>): Promise<boolean>', gave the following error.
+    Argument of type '{ (n: number): Promise<number>; (s: string): Promise<string>; (b: boolean): Promise<boolean>; }' is not assignable to parameter of type '(x: number) => Promise<boolean>'.
+      Type 'Promise<number>' is not assignable to type 'Promise<boolean>'.
+        Type 'number' is not assignable to type 'boolean'.
+  Overload 2 of 2, '(cb: (x: number) => Promise<boolean>, error?: (error: any) => Promise<boolean>): Promise<boolean>', gave the following error.
+    Argument of type '{ (n: number): Promise<number>; (s: string): Promise<string>; (b: boolean): Promise<boolean>; }' is not assignable to parameter of type '(x: number) => Promise<boolean>'.
+      Type 'Promise<number>' is not assignable to type 'Promise<boolean>'.
 
 
 ==== tests/cases/conformance/types/typeRelationships/typeInference/genericCallToOverloadedMethodWithOverloadedArguments.ts (4 errors) ====
@@ -69,10 +87,15 @@ tests/cases/conformance/types/typeRelationships/typeInference/genericCallToOverl
     
         var numPromise: Promise<number>;
         var newPromise = numPromise.then(testFunction);
-                                         ~~~~~~~~~~~~
-!!! error TS2345: Argument of type '{ (n: number): Promise<number>; (s: string): Promise<string>; }' is not assignable to parameter of type '(x: number) => Promise<string>'.
-!!! error TS2345:   Type 'Promise<number>' is not assignable to type 'Promise<string>'.
-!!! error TS2345:     Type 'number' is not assignable to type 'string'.
+                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(cb: (x: number) => Promise<string>): Promise<string>', gave the following error.
+!!! error TS2769:     Argument of type '{ (n: number): Promise<number>; (s: string): Promise<string>; }' is not assignable to parameter of type '(x: number) => Promise<string>'.
+!!! error TS2769:       Type 'Promise<number>' is not assignable to type 'Promise<string>'.
+!!! error TS2769:         Type 'number' is not assignable to type 'string'.
+!!! error TS2769:   Overload 2 of 2, '(cb: (x: number) => Promise<string>, error?: (error: any) => Promise<string>): Promise<string>', gave the following error.
+!!! error TS2769:     Argument of type '{ (n: number): Promise<number>; (s: string): Promise<string>; }' is not assignable to parameter of type '(x: number) => Promise<string>'.
+!!! error TS2769:       Type 'Promise<number>' is not assignable to type 'Promise<string>'.
     }
     
     //////////////////////////////////////
@@ -89,10 +112,18 @@ tests/cases/conformance/types/typeRelationships/typeInference/genericCallToOverl
     
         var numPromise: Promise<number>;
         var newPromise = numPromise.then(testFunction);
-                                         ~~~~~~~~~~~~
-!!! error TS2345: Argument of type '{ (n: number): Promise<number>; (s: string): Promise<string>; }' is not assignable to parameter of type '(x: number) => Promise<string>'.
-!!! error TS2345:   Type 'Promise<number>' is not assignable to type 'Promise<string>'.
-!!! error TS2345:     Type 'number' is not assignable to type 'string'.
+                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 3, '(cb: (x: number) => Promise<string>): Promise<string>', gave the following error.
+!!! error TS2769:     Argument of type '{ (n: number): Promise<number>; (s: string): Promise<string>; }' is not assignable to parameter of type '(x: number) => Promise<string>'.
+!!! error TS2769:       Type 'Promise<number>' is not assignable to type 'Promise<string>'.
+!!! error TS2769:         Type 'number' is not assignable to type 'string'.
+!!! error TS2769:   Overload 2 of 3, '(cb: (x: number) => Promise<string>, error?: (error: any) => Promise<string>): Promise<string>', gave the following error.
+!!! error TS2769:     Argument of type '{ (n: number): Promise<number>; (s: string): Promise<string>; }' is not assignable to parameter of type '(x: number) => Promise<string>'.
+!!! error TS2769:       Type 'Promise<number>' is not assignable to type 'Promise<string>'.
+!!! error TS2769:   Overload 3 of 3, '(cb: (x: number) => Promise<string>, error?: (error: any) => string, progress?: (preservation: any) => void): Promise<string>', gave the following error.
+!!! error TS2769:     Argument of type '{ (n: number): Promise<number>; (s: string): Promise<string>; }' is not assignable to parameter of type '(x: number) => Promise<string>'.
+!!! error TS2769:       Type 'Promise<number>' is not assignable to type 'Promise<string>'.
     }
     
     //////////////////////////////////////
@@ -109,9 +140,14 @@ tests/cases/conformance/types/typeRelationships/typeInference/genericCallToOverl
     
         var numPromise: Promise<number>;
         var newPromise = numPromise.then(testFunction);
-                                         ~~~~~~~~~~~~
-!!! error TS2345: Argument of type '{ (n: number): Promise<number>; (s: string): Promise<string>; (b: boolean): Promise<boolean>; }' is not assignable to parameter of type '(x: number) => Promise<boolean>'.
-!!! error TS2345:   Type 'Promise<number>' is not assignable to type 'Promise<boolean>'.
-!!! error TS2345:     Type 'number' is not assignable to type 'boolean'.
+                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(cb: (x: number) => Promise<boolean>): Promise<boolean>', gave the following error.
+!!! error TS2769:     Argument of type '{ (n: number): Promise<number>; (s: string): Promise<string>; (b: boolean): Promise<boolean>; }' is not assignable to parameter of type '(x: number) => Promise<boolean>'.
+!!! error TS2769:       Type 'Promise<number>' is not assignable to type 'Promise<boolean>'.
+!!! error TS2769:         Type 'number' is not assignable to type 'boolean'.
+!!! error TS2769:   Overload 2 of 2, '(cb: (x: number) => Promise<boolean>, error?: (error: any) => Promise<boolean>): Promise<boolean>', gave the following error.
+!!! error TS2769:     Argument of type '{ (n: number): Promise<number>; (s: string): Promise<string>; (b: boolean): Promise<boolean>; }' is not assignable to parameter of type '(x: number) => Promise<boolean>'.
+!!! error TS2769:       Type 'Promise<number>' is not assignable to type 'Promise<boolean>'.
     }
     

tests/baselines/reference/heterogeneousArrayAndOverloads.errors.txt

@@ -1,9 +1,9 @@
-tests/cases/compiler/heterogeneousArrayAndOverloads.ts(9,20): error TS2322: Type 'number' is not assignable to type 'string'.
-tests/cases/compiler/heterogeneousArrayAndOverloads.ts(9,23): error TS2322: Type 'number' is not assignable to type 'string'.
-tests/cases/compiler/heterogeneousArrayAndOverloads.ts(9,32): error TS2322: Type 'number' is not assignable to type 'string'.
+tests/cases/compiler/heterogeneousArrayAndOverloads.ts(9,9): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(arg1: number[]): any', gave the following error.
+    Type 'string' is not assignable to type 'number'.
 
 
-==== tests/cases/compiler/heterogeneousArrayAndOverloads.ts (3 errors) ====
+==== tests/cases/compiler/heterogeneousArrayAndOverloads.ts (1 errors) ====
     class arrTest {
         test(arg1: number[]);
         test(arg1: string[]);
@@ -13,11 +13,9 @@ tests/cases/compiler/heterogeneousArrayAndOverloads.ts(9,32): error TS2322: Type
             this.test(["hi"]);
             this.test([]);
             this.test([1, 2, "hi", 5]); // Error
-                       ~
-!!! error TS2322: Type 'number' is not assignable to type 'string'.
-                          ~
-!!! error TS2322: Type 'number' is not assignable to type 'string'.
-                                   ~
-!!! error TS2322: Type 'number' is not assignable to type 'string'.
+            ~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(arg1: number[]): any', gave the following error.
+!!! error TS2769:     Type 'string' is not assignable to type 'number'.
         }
     }

tests/baselines/reference/incompatibleTypes.errors.txt

@@ -9,12 +9,24 @@ tests/cases/compiler/incompatibleTypes.ts(26,12): error TS2416: Property 'p1' in
   Type 'number' is not assignable to type 'string'.
 tests/cases/compiler/incompatibleTypes.ts(34,12): error TS2416: Property 'p1' in type 'C4' is not assignable to the same property in base type 'IFoo4'.
   Type '{ c: { b: string; }; d: string; }' is missing the following properties from type '{ a: { a: string; }; b: string; }': a, b
-tests/cases/compiler/incompatibleTypes.ts(42,5): error TS2345: Argument of type 'C1' is not assignable to parameter of type 'IFoo2'.
-  Types of property 'p1' are incompatible.
-    Type '() => string' is not assignable to type '(s: string) => number'.
-      Type 'string' is not assignable to type 'number'.
-tests/cases/compiler/incompatibleTypes.ts(49,7): error TS2345: Argument of type '{ e: number; f: number; }' is not assignable to parameter of type '{ c: { b: string; }; d: string; }'.
-  Object literal may only specify known properties, and 'e' does not exist in type '{ c: { b: string; }; d: string; }'.
+tests/cases/compiler/incompatibleTypes.ts(42,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(i: IFoo1): void', gave the following error.
+    Argument of type 'C1' is not assignable to parameter of type 'IFoo1'.
+      Types of property 'p1' are incompatible.
+        Type '() => string' is not assignable to type '() => number'.
+          Type 'string' is not assignable to type 'number'.
+  Overload 2 of 2, '(i: IFoo2): void', gave the following error.
+    Argument of type 'C1' is not assignable to parameter of type 'IFoo2'.
+      Types of property 'p1' are incompatible.
+        Type '() => string' is not assignable to type '(s: string) => number'.
+          Type 'string' is not assignable to type 'number'.
+tests/cases/compiler/incompatibleTypes.ts(49,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(n: { a: { a: string; }; b: string; }): number', gave the following error.
+    Argument of type '{ e: number; f: number; }' is not assignable to parameter of type '{ a: { a: string; }; b: string; }'.
+      Object literal may only specify known properties, and 'e' does not exist in type '{ a: { a: string; }; b: string; }'.
+  Overload 2 of 2, '(s: { c: { b: string; }; d: string; }): string', gave the following error.
+    Argument of type '{ e: number; f: number; }' is not assignable to parameter of type '{ c: { b: string; }; d: string; }'.
+      Object literal may only specify known properties, and 'e' does not exist in type '{ c: { b: string; }; d: string; }'.
 tests/cases/compiler/incompatibleTypes.ts(66,47): error TS2322: Type '{ e: number; f: number; }' is not assignable to type '{ a: { a: string; }; b: string; }'.
   Object literal may only specify known properties, and 'e' does not exist in type '{ a: { a: string; }; b: string; }'.
 tests/cases/compiler/incompatibleTypes.ts(72,5): error TS2322: Type '5' is not assignable to type '() => string'.
@@ -79,11 +91,18 @@ tests/cases/compiler/incompatibleTypes.ts(74,5): error TS2322: Type '(a: any) =>
     var c1: C1;
     var c2: C2;
     if1(c1);
-        ~~
-!!! error TS2345: Argument of type 'C1' is not assignable to parameter of type 'IFoo2'.
-!!! error TS2345:   Types of property 'p1' are incompatible.
-!!! error TS2345:     Type '() => string' is not assignable to type '(s: string) => number'.
-!!! error TS2345:       Type 'string' is not assignable to type 'number'.
+    ~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(i: IFoo1): void', gave the following error.
+!!! error TS2769:     Argument of type 'C1' is not assignable to parameter of type 'IFoo1'.
+!!! error TS2769:       Types of property 'p1' are incompatible.
+!!! error TS2769:         Type '() => string' is not assignable to type '() => number'.
+!!! error TS2769:           Type 'string' is not assignable to type 'number'.
+!!! error TS2769:   Overload 2 of 2, '(i: IFoo2): void', gave the following error.
+!!! error TS2769:     Argument of type 'C1' is not assignable to parameter of type 'IFoo2'.
+!!! error TS2769:       Types of property 'p1' are incompatible.
+!!! error TS2769:         Type '() => string' is not assignable to type '(s: string) => number'.
+!!! error TS2769:           Type 'string' is not assignable to type 'number'.
     
     
     function of1(n: { a: { a: string; }; b: string; }): number;
@@ -91,9 +110,14 @@ tests/cases/compiler/incompatibleTypes.ts(74,5): error TS2322: Type '(a: any) =>
     function of1(a: any) { return null; }
     
     of1({ e: 0, f: 0 });
-          ~~~~
-!!! error TS2345: Argument of type '{ e: number; f: number; }' is not assignable to parameter of type '{ c: { b: string; }; d: string; }'.
-!!! error TS2345:   Object literal may only specify known properties, and 'e' does not exist in type '{ c: { b: string; }; d: string; }'.
+    ~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(n: { a: { a: string; }; b: string; }): number', gave the following error.
+!!! error TS2769:     Argument of type '{ e: number; f: number; }' is not assignable to parameter of type '{ a: { a: string; }; b: string; }'.
+!!! error TS2769:       Object literal may only specify known properties, and 'e' does not exist in type '{ a: { a: string; }; b: string; }'.
+!!! error TS2769:   Overload 2 of 2, '(s: { c: { b: string; }; d: string; }): string', gave the following error.
+!!! error TS2769:     Argument of type '{ e: number; f: number; }' is not assignable to parameter of type '{ c: { b: string; }; d: string; }'.
+!!! error TS2769:       Object literal may only specify known properties, and 'e' does not exist in type '{ c: { b: string; }; d: string; }'.
     
     interface IMap {
      [key:string]:string;

tests/baselines/reference/inheritedConstructorWithRestParams2.errors.txt

@@ -1,6 +1,14 @@
 tests/cases/compiler/inheritedConstructorWithRestParams2.ts(32,13): error TS2345: Argument of type '3' is not assignable to parameter of type 'string'.
-tests/cases/compiler/inheritedConstructorWithRestParams2.ts(33,17): error TS2345: Argument of type '3' is not assignable to parameter of type 'string'.
-tests/cases/compiler/inheritedConstructorWithRestParams2.ts(34,17): error TS2345: Argument of type '3' is not assignable to parameter of type 'string'.
+tests/cases/compiler/inheritedConstructorWithRestParams2.ts(33,1): error TS2769: No overload matches this call.
+  Overload 1 of 3, '(x: string, ...y: number[]): Derived', gave the following error.
+    Argument of type '""' is not assignable to parameter of type 'number'.
+  Overload 2 of 3, '(x1: string, x2: string, ...y: number[]): Derived', gave the following error.
+    Argument of type '3' is not assignable to parameter of type 'string'.
+tests/cases/compiler/inheritedConstructorWithRestParams2.ts(34,1): error TS2769: No overload matches this call.
+  Overload 1 of 3, '(x: string, ...y: number[]): Derived', gave the following error.
+    Argument of type '""' is not assignable to parameter of type 'number'.
+  Overload 2 of 3, '(x1: string, x2: string, ...y: number[]): Derived', gave the following error.
+    Argument of type '3' is not assignable to parameter of type 'string'.
 
 
 ==== tests/cases/compiler/inheritedConstructorWithRestParams2.ts (3 errors) ====
@@ -39,8 +47,16 @@ tests/cases/compiler/inheritedConstructorWithRestParams2.ts(34,17): error TS2345
                 ~
 !!! error TS2345: Argument of type '3' is not assignable to parameter of type 'string'.
     new Derived("", 3, "", 3);
-                    ~
-!!! error TS2345: Argument of type '3' is not assignable to parameter of type 'string'.
+    ~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 3, '(x: string, ...y: number[]): Derived', gave the following error.
+!!! error TS2769:     Argument of type '""' is not assignable to parameter of type 'number'.
+!!! error TS2769:   Overload 2 of 3, '(x1: string, x2: string, ...y: number[]): Derived', gave the following error.
+!!! error TS2769:     Argument of type '3' is not assignable to parameter of type 'string'.
     new Derived("", 3, "", "");
-                    ~
-!!! error TS2345: Argument of type '3' is not assignable to parameter of type 'string'.
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 3, '(x: string, ...y: number[]): Derived', gave the following error.
+!!! error TS2769:     Argument of type '""' is not assignable to parameter of type 'number'.
+!!! error TS2769:   Overload 2 of 3, '(x1: string, x2: string, ...y: number[]): Derived', gave the following error.
+!!! error TS2769:     Argument of type '3' is not assignable to parameter of type 'string'.

tests/baselines/reference/iterableArrayPattern28.errors.txt

@@ -1,8 +1,40 @@
-tests/cases/conformance/es6/destructuring/iterableArrayPattern28.ts(2,52): error TS2322: Type 'true' is not assignable to type 'number'.
+tests/cases/conformance/es6/destructuring/iterableArrayPattern28.ts(2,24): error TS2769: No overload matches this call.
+  Overload 1 of 3, '(iterable: Iterable<readonly [string, number]>): Map<string, number>', gave the following error.
+    Argument of type '([string, number] | [string, boolean])[]' is not assignable to parameter of type 'Iterable<readonly [string, number]>'.
+      Types of property '[Symbol.iterator]' are incompatible.
+        Type '() => IterableIterator<[string, number] | [string, boolean]>' is not assignable to type '() => Iterator<readonly [string, number], any, undefined>'.
+          Type 'IterableIterator<[string, number] | [string, boolean]>' is not assignable to type 'Iterator<readonly [string, number], any, undefined>'.
+            Types of property 'next' are incompatible.
+              Type '(...args: [] | [undefined]) => IteratorResult<[string, number] | [string, boolean], any>' is not assignable to type '(...args: [] | [undefined]) => IteratorResult<readonly [string, number], any>'.
+                Type 'IteratorResult<[string, number] | [string, boolean], any>' is not assignable to type 'IteratorResult<readonly [string, number], any>'.
+                  Type 'IteratorYieldResult<[string, number] | [string, boolean]>' is not assignable to type 'IteratorResult<readonly [string, number], any>'.
+                    Type 'IteratorYieldResult<[string, number] | [string, boolean]>' is not assignable to type 'IteratorYieldResult<readonly [string, number]>'.
+                      Type '[string, number] | [string, boolean]' is not assignable to type 'readonly [string, number]'.
+                        Type '[string, boolean]' is not assignable to type 'readonly [string, number]'.
+                          Types of property '1' are incompatible.
+                            Type 'boolean' is not assignable to type 'number'.
+  Overload 2 of 3, '(entries?: readonly (readonly [string, number])[]): Map<string, number>', gave the following error.
+    Type 'true' is not assignable to type 'number'.
 
 
 ==== tests/cases/conformance/es6/destructuring/iterableArrayPattern28.ts (1 errors) ====
     function takeFirstTwoEntries(...[[k1, v1], [k2, v2]]: [string, number][]) { }
     takeFirstTwoEntries(...new Map([["", 0], ["hello", true]]));
-                                                       ~~~~
-!!! error TS2322: Type 'true' is not assignable to type 'number'.
+                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 3, '(iterable: Iterable<readonly [string, number]>): Map<string, number>', gave the following error.
+!!! error TS2769:     Argument of type '([string, number] | [string, boolean])[]' is not assignable to parameter of type 'Iterable<readonly [string, number]>'.
+!!! error TS2769:       Types of property '[Symbol.iterator]' are incompatible.
+!!! error TS2769:         Type '() => IterableIterator<[string, number] | [string, boolean]>' is not assignable to type '() => Iterator<readonly [string, number], any, undefined>'.
+!!! error TS2769:           Type 'IterableIterator<[string, number] | [string, boolean]>' is not assignable to type 'Iterator<readonly [string, number], any, undefined>'.
+!!! error TS2769:             Types of property 'next' are incompatible.
+!!! error TS2769:               Type '(...args: [] | [undefined]) => IteratorResult<[string, number] | [string, boolean], any>' is not assignable to type '(...args: [] | [undefined]) => IteratorResult<readonly [string, number], any>'.
+!!! error TS2769:                 Type 'IteratorResult<[string, number] | [string, boolean], any>' is not assignable to type 'IteratorResult<readonly [string, number], any>'.
+!!! error TS2769:                   Type 'IteratorYieldResult<[string, number] | [string, boolean]>' is not assignable to type 'IteratorResult<readonly [string, number], any>'.
+!!! error TS2769:                     Type 'IteratorYieldResult<[string, number] | [string, boolean]>' is not assignable to type 'IteratorYieldResult<readonly [string, number]>'.
+!!! error TS2769:                       Type '[string, number] | [string, boolean]' is not assignable to type 'readonly [string, number]'.
+!!! error TS2769:                         Type '[string, boolean]' is not assignable to type 'readonly [string, number]'.
+!!! error TS2769:                           Types of property '1' are incompatible.
+!!! error TS2769:                             Type 'boolean' is not assignable to type 'number'.
+!!! error TS2769:   Overload 2 of 3, '(entries?: readonly (readonly [string, number])[]): Map<string, number>', gave the following error.
+!!! error TS2769:     Type 'true' is not assignable to type 'number'.

tests/baselines/reference/iteratorSpreadInArray6.errors.txt

@@ -1,9 +1,13 @@
-tests/cases/conformance/es6/spread/iteratorSpreadInArray6.ts(15,14): error TS2345: Argument of type 'symbol[]' is not assignable to parameter of type 'number | ConcatArray<number>'.
-  Type 'symbol[]' is not assignable to type 'ConcatArray<number>'.
-    Types of property 'slice' are incompatible.
-      Type '(start?: number, end?: number) => symbol[]' is not assignable to type '(start?: number, end?: number) => number[]'.
-        Type 'symbol[]' is not assignable to type 'number[]'.
-          Type 'symbol' is not assignable to type 'number'.
+tests/cases/conformance/es6/spread/iteratorSpreadInArray6.ts(15,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(...items: ConcatArray<number>[]): number[]', gave the following error.
+    Argument of type 'symbol[]' is not assignable to parameter of type 'ConcatArray<number>'.
+      Types of property 'slice' are incompatible.
+        Type '(start?: number, end?: number) => symbol[]' is not assignable to type '(start?: number, end?: number) => number[]'.
+          Type 'symbol[]' is not assignable to type 'number[]'.
+            Type 'symbol' is not assignable to type 'number'.
+  Overload 2 of 2, '(...items: (number | ConcatArray<number>)[]): number[]', gave the following error.
+    Argument of type 'symbol[]' is not assignable to parameter of type 'number | ConcatArray<number>'.
+      Type 'symbol[]' is not assignable to type 'ConcatArray<number>'.
 
 
 ==== tests/cases/conformance/es6/spread/iteratorSpreadInArray6.ts (1 errors) ====
@@ -22,10 +26,14 @@ tests/cases/conformance/es6/spread/iteratorSpreadInArray6.ts(15,14): error TS234
     
     var array: number[] = [0, 1];
     array.concat([...new SymbolIterator]);
-                 ~~~~~~~~~~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type 'symbol[]' is not assignable to parameter of type 'number | ConcatArray<number>'.
-!!! error TS2345:   Type 'symbol[]' is not assignable to type 'ConcatArray<number>'.
-!!! error TS2345:     Types of property 'slice' are incompatible.
-!!! error TS2345:       Type '(start?: number, end?: number) => symbol[]' is not assignable to type '(start?: number, end?: number) => number[]'.
-!!! error TS2345:         Type 'symbol[]' is not assignable to type 'number[]'.
-!!! error TS2345:           Type 'symbol' is not assignable to type 'number'.
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(...items: ConcatArray<number>[]): number[]', gave the following error.
+!!! error TS2769:     Argument of type 'symbol[]' is not assignable to parameter of type 'ConcatArray<number>'.
+!!! error TS2769:       Types of property 'slice' are incompatible.
+!!! error TS2769:         Type '(start?: number, end?: number) => symbol[]' is not assignable to type '(start?: number, end?: number) => number[]'.
+!!! error TS2769:           Type 'symbol[]' is not assignable to type 'number[]'.
+!!! error TS2769:             Type 'symbol' is not assignable to type 'number'.
+!!! error TS2769:   Overload 2 of 2, '(...items: (number | ConcatArray<number>)[]): number[]', gave the following error.
+!!! error TS2769:     Argument of type 'symbol[]' is not assignable to parameter of type 'number | ConcatArray<number>'.
+!!! error TS2769:       Type 'symbol[]' is not assignable to type 'ConcatArray<number>'.

tests/baselines/reference/orderMattersForSignatureGroupIdentity.errors.txt

@@ -1,8 +1,18 @@
-tests/cases/compiler/orderMattersForSignatureGroupIdentity.ts(19,5): error TS2345: Argument of type '{ s: string; n: number; }' is not assignable to parameter of type '{ n: number; }'.
-  Object literal may only specify known properties, and 's' does not exist in type '{ n: number; }'.
+tests/cases/compiler/orderMattersForSignatureGroupIdentity.ts(19,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(x: { s: string; }): string', gave the following error.
+    Argument of type '{ s: string; n: number; }' is not assignable to parameter of type '{ s: string; }'.
+      Object literal may only specify known properties, and 'n' does not exist in type '{ s: string; }'.
+  Overload 2 of 2, '(x: { n: number; }): number', gave the following error.
+    Argument of type '{ s: string; n: number; }' is not assignable to parameter of type '{ n: number; }'.
+      Object literal may only specify known properties, and 's' does not exist in type '{ n: number; }'.
 tests/cases/compiler/orderMattersForSignatureGroupIdentity.ts(22,5): error TS2403: Subsequent variable declarations must have the same type.  Variable 'w' must be of type 'A', but here has type 'C'.
-tests/cases/compiler/orderMattersForSignatureGroupIdentity.ts(24,5): error TS2345: Argument of type '{ s: string; n: number; }' is not assignable to parameter of type '{ n: number; }'.
-  Object literal may only specify known properties, and 's' does not exist in type '{ n: number; }'.
+tests/cases/compiler/orderMattersForSignatureGroupIdentity.ts(24,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(x: { s: string; }): string', gave the following error.
+    Argument of type '{ s: string; n: number; }' is not assignable to parameter of type '{ s: string; }'.
+      Object literal may only specify known properties, and 'n' does not exist in type '{ s: string; }'.
+  Overload 2 of 2, '(x: { n: number; }): number', gave the following error.
+    Argument of type '{ s: string; n: number; }' is not assignable to parameter of type '{ n: number; }'.
+      Object literal may only specify known properties, and 's' does not exist in type '{ n: number; }'.
 
 
 ==== tests/cases/compiler/orderMattersForSignatureGroupIdentity.ts (3 errors) ====
@@ -25,9 +35,14 @@ tests/cases/compiler/orderMattersForSignatureGroupIdentity.ts(24,5): error TS234
     var v: B;
     
     v({ s: "", n: 0 }).toLowerCase();
-        ~~~~~
-!!! error TS2345: Argument of type '{ s: string; n: number; }' is not assignable to parameter of type '{ n: number; }'.
-!!! error TS2345:   Object literal may only specify known properties, and 's' does not exist in type '{ n: number; }'.
+    ~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(x: { s: string; }): string', gave the following error.
+!!! error TS2769:     Argument of type '{ s: string; n: number; }' is not assignable to parameter of type '{ s: string; }'.
+!!! error TS2769:       Object literal may only specify known properties, and 'n' does not exist in type '{ s: string; }'.
+!!! error TS2769:   Overload 2 of 2, '(x: { n: number; }): number', gave the following error.
+!!! error TS2769:     Argument of type '{ s: string; n: number; }' is not assignable to parameter of type '{ n: number; }'.
+!!! error TS2769:       Object literal may only specify known properties, and 's' does not exist in type '{ n: number; }'.
     
     var w: A;
     var w: C;
@@ -36,6 +51,11 @@ tests/cases/compiler/orderMattersForSignatureGroupIdentity.ts(24,5): error TS234
 !!! related TS6203 tests/cases/compiler/orderMattersForSignatureGroupIdentity.ts:21:5: 'w' was also declared here.
     
     w({ s: "", n: 0 }).toLowerCase();
-        ~~~~~
-!!! error TS2345: Argument of type '{ s: string; n: number; }' is not assignable to parameter of type '{ n: number; }'.
-!!! error TS2345:   Object literal may only specify known properties, and 's' does not exist in type '{ n: number; }'.
+    ~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(x: { s: string; }): string', gave the following error.
+!!! error TS2769:     Argument of type '{ s: string; n: number; }' is not assignable to parameter of type '{ s: string; }'.
+!!! error TS2769:       Object literal may only specify known properties, and 'n' does not exist in type '{ s: string; }'.
+!!! error TS2769:   Overload 2 of 2, '(x: { n: number; }): number', gave the following error.
+!!! error TS2769:     Argument of type '{ s: string; n: number; }' is not assignable to parameter of type '{ n: number; }'.
+!!! error TS2769:       Object literal may only specify known properties, and 's' does not exist in type '{ n: number; }'.

tests/baselines/reference/overload1.errors.txt

@@ -3,7 +3,11 @@ tests/cases/compiler/overload1.ts(29,1): error TS2322: Type 'number' is not assi
 tests/cases/compiler/overload1.ts(31,11): error TS2554: Expected 1-2 arguments, but got 3.
 tests/cases/compiler/overload1.ts(32,5): error TS2554: Expected 1-2 arguments, but got 0.
 tests/cases/compiler/overload1.ts(33,1): error TS2322: Type 'C' is not assignable to type 'string'.
-tests/cases/compiler/overload1.ts(34,9): error TS2345: Argument of type '2' is not assignable to parameter of type 'string'.
+tests/cases/compiler/overload1.ts(34,3): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(s1: string, s2: number): string', gave the following error.
+    Argument of type '2' is not assignable to parameter of type 'string'.
+  Overload 2 of 2, '(s1: number, s2: string): number', gave the following error.
+    Argument of type '2' is not assignable to parameter of type 'string'.
 
 
 ==== tests/cases/compiler/overload1.ts (6 errors) ====
@@ -52,8 +56,12 @@ tests/cases/compiler/overload1.ts(34,9): error TS2345: Argument of type '2' is n
     ~
 !!! error TS2322: Type 'C' is not assignable to type 'string'.
     z=x.h(2,2); // no match
-            ~
-!!! error TS2345: Argument of type '2' is not assignable to parameter of type 'string'.
+      ~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(s1: string, s2: number): string', gave the following error.
+!!! error TS2769:     Argument of type '2' is not assignable to parameter of type 'string'.
+!!! error TS2769:   Overload 2 of 2, '(s1: number, s2: string): number', gave the following error.
+!!! error TS2769:     Argument of type '2' is not assignable to parameter of type 'string'.
     z=x.h("hello",0); // good
     
     var v=x.g;

tests/baselines/reference/overloadResolution.errors.txt

@@ -1,11 +1,23 @@
-tests/cases/conformance/expressions/functionCalls/overloadResolution.ts(27,5): error TS2345: Argument of type '{}' is not assignable to parameter of type 'number'.
+tests/cases/conformance/expressions/functionCalls/overloadResolution.ts(27,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(s: string): string', gave the following error.
+    Argument of type '{}' is not assignable to parameter of type 'string'.
+  Overload 2 of 2, '(s: number): number', gave the following error.
+    Argument of type '{}' is not assignable to parameter of type 'number'.
 tests/cases/conformance/expressions/functionCalls/overloadResolution.ts(41,11): error TS2345: Argument of type '""' is not assignable to parameter of type 'number'.
 tests/cases/conformance/expressions/functionCalls/overloadResolution.ts(63,5): error TS2558: Expected 3 type arguments, but got 4.
 tests/cases/conformance/expressions/functionCalls/overloadResolution.ts(70,21): error TS2345: Argument of type '3' is not assignable to parameter of type 'string'.
 tests/cases/conformance/expressions/functionCalls/overloadResolution.ts(71,21): error TS2345: Argument of type '""' is not assignable to parameter of type 'number'.
 tests/cases/conformance/expressions/functionCalls/overloadResolution.ts(81,5): error TS2344: Type 'boolean' does not satisfy the constraint 'number'.
-tests/cases/conformance/expressions/functionCalls/overloadResolution.ts(84,5): error TS2345: Argument of type 'true' is not assignable to parameter of type 'number'.
-tests/cases/conformance/expressions/functionCalls/overloadResolution.ts(85,11): error TS2345: Argument of type 'true' is not assignable to parameter of type 'string'.
+tests/cases/conformance/expressions/functionCalls/overloadResolution.ts(84,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(n: string, m: any): any', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'string'.
+  Overload 2 of 2, '(n: number, m: any): any', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'number'.
+tests/cases/conformance/expressions/functionCalls/overloadResolution.ts(85,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(n: any, m: number): any', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'number'.
+  Overload 2 of 2, '(n: any, m: string): any', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'string'.
 tests/cases/conformance/expressions/functionCalls/overloadResolution.ts(91,5): error TS2403: Subsequent variable declarations must have the same type.  Variable 'n' must be of type 'number', but here has type 'string'.
 tests/cases/conformance/expressions/functionCalls/overloadResolution.ts(91,22): error TS2339: Property 'toFixed' does not exist on type 'string'.
 
@@ -38,8 +50,12 @@ tests/cases/conformance/expressions/functionCalls/overloadResolution.ts(91,22):
     
     // No candidate overloads found
     fn1({}); // Error
-        ~~
-!!! error TS2345: Argument of type '{}' is not assignable to parameter of type 'number'.
+    ~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(s: string): string', gave the following error.
+!!! error TS2769:     Argument of type '{}' is not assignable to parameter of type 'string'.
+!!! error TS2769:   Overload 2 of 2, '(s: number): number', gave the following error.
+!!! error TS2769:     Argument of type '{}' is not assignable to parameter of type 'number'.
     
     // Generic and non - generic overload where generic overload is the only candidate when called with type arguments
     function fn2(s: string, n: number): number;
@@ -107,11 +123,19 @@ tests/cases/conformance/expressions/functionCalls/overloadResolution.ts(91,22):
     
     // Generic overloads with constraints called without type arguments but with types that do not satisfy the constraints
     fn4(true, null); // Error
-        ~~~~
-!!! error TS2345: Argument of type 'true' is not assignable to parameter of type 'number'.
+    ~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(n: string, m: any): any', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'string'.
+!!! error TS2769:   Overload 2 of 2, '(n: number, m: any): any', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'number'.
     fn4(null, true); // Error
-              ~~~~
-!!! error TS2345: Argument of type 'true' is not assignable to parameter of type 'string'.
+    ~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(n: any, m: number): any', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'number'.
+!!! error TS2769:   Overload 2 of 2, '(n: any, m: string): any', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'string'.
     
     // Non - generic overloads where contextual typing of function arguments has errors
     function fn5(f: (n: string) => void): string;

tests/baselines/reference/overloadResolutionClassConstructors.errors.txt

@@ -1,4 +1,8 @@
-tests/cases/conformance/expressions/functionCalls/overloadResolutionClassConstructors.ts(27,9): error TS2345: Argument of type '{}' is not assignable to parameter of type 'number'.
+tests/cases/conformance/expressions/functionCalls/overloadResolutionClassConstructors.ts(27,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(s: string): fn1', gave the following error.
+    Argument of type '{}' is not assignable to parameter of type 'string'.
+  Overload 2 of 2, '(s: number): fn1', gave the following error.
+    Argument of type '{}' is not assignable to parameter of type 'number'.
 tests/cases/conformance/expressions/functionCalls/overloadResolutionClassConstructors.ts(60,9): error TS2558: Expected 3 type arguments, but got 1.
 tests/cases/conformance/expressions/functionCalls/overloadResolutionClassConstructors.ts(61,9): error TS2558: Expected 3 type arguments, but got 2.
 tests/cases/conformance/expressions/functionCalls/overloadResolutionClassConstructors.ts(65,9): error TS2558: Expected 3 type arguments, but got 4.
@@ -42,8 +46,12 @@ tests/cases/conformance/expressions/functionCalls/overloadResolutionClassConstru
     
     // No candidate overloads found
     new fn1({}); // Error
-            ~~
-!!! error TS2345: Argument of type '{}' is not assignable to parameter of type 'number'.
+    ~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(s: string): fn1', gave the following error.
+!!! error TS2769:     Argument of type '{}' is not assignable to parameter of type 'string'.
+!!! error TS2769:   Overload 2 of 2, '(s: number): fn1', gave the following error.
+!!! error TS2769:     Argument of type '{}' is not assignable to parameter of type 'number'.
     
     // Generic and non - generic overload where generic overload is the only candidate when called with type arguments
     class fn2<T> {

tests/baselines/reference/overloadResolutionConstructors.errors.txt

@@ -1,11 +1,23 @@
-tests/cases/conformance/expressions/functionCalls/overloadResolutionConstructors.ts(27,9): error TS2345: Argument of type '{}' is not assignable to parameter of type 'number'.
+tests/cases/conformance/expressions/functionCalls/overloadResolutionConstructors.ts(27,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(s: string): string', gave the following error.
+    Argument of type '{}' is not assignable to parameter of type 'string'.
+  Overload 2 of 2, '(s: number): number', gave the following error.
+    Argument of type '{}' is not assignable to parameter of type 'number'.
 tests/cases/conformance/expressions/functionCalls/overloadResolutionConstructors.ts(43,15): error TS2345: Argument of type '""' is not assignable to parameter of type 'number'.
 tests/cases/conformance/expressions/functionCalls/overloadResolutionConstructors.ts(67,9): error TS2558: Expected 3 type arguments, but got 4.
 tests/cases/conformance/expressions/functionCalls/overloadResolutionConstructors.ts(77,25): error TS2345: Argument of type '3' is not assignable to parameter of type 'string'.
 tests/cases/conformance/expressions/functionCalls/overloadResolutionConstructors.ts(78,25): error TS2345: Argument of type '""' is not assignable to parameter of type 'number'.
 tests/cases/conformance/expressions/functionCalls/overloadResolutionConstructors.ts(88,9): error TS2344: Type 'boolean' does not satisfy the constraint 'number'.
-tests/cases/conformance/expressions/functionCalls/overloadResolutionConstructors.ts(91,9): error TS2345: Argument of type 'true' is not assignable to parameter of type 'number'.
-tests/cases/conformance/expressions/functionCalls/overloadResolutionConstructors.ts(92,15): error TS2345: Argument of type 'true' is not assignable to parameter of type 'string'.
+tests/cases/conformance/expressions/functionCalls/overloadResolutionConstructors.ts(91,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(n: string, m: any): any', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'string'.
+  Overload 2 of 2, '(n: number, m: any): any', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'number'.
+tests/cases/conformance/expressions/functionCalls/overloadResolutionConstructors.ts(92,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(n: any, m: number): any', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'number'.
+  Overload 2 of 2, '(n: any, m: string): any', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'string'.
 tests/cases/conformance/expressions/functionCalls/overloadResolutionConstructors.ts(100,5): error TS2403: Subsequent variable declarations must have the same type.  Variable 'n' must be of type 'number', but here has type 'string'.
 tests/cases/conformance/expressions/functionCalls/overloadResolutionConstructors.ts(100,26): error TS2339: Property 'toFixed' does not exist on type 'string'.
 
@@ -38,8 +50,12 @@ tests/cases/conformance/expressions/functionCalls/overloadResolutionConstructors
     
     // No candidate overloads found
     new fn1({}); // Error
-            ~~
-!!! error TS2345: Argument of type '{}' is not assignable to parameter of type 'number'.
+    ~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(s: string): string', gave the following error.
+!!! error TS2769:     Argument of type '{}' is not assignable to parameter of type 'string'.
+!!! error TS2769:   Overload 2 of 2, '(s: number): number', gave the following error.
+!!! error TS2769:     Argument of type '{}' is not assignable to parameter of type 'number'.
     
     // Generic and non - generic overload where generic overload is the only candidate when called with type arguments
     interface fn2 {
@@ -114,11 +130,19 @@ tests/cases/conformance/expressions/functionCalls/overloadResolutionConstructors
     
     // Generic overloads with constraints called without type arguments but with types that do not satisfy the constraints
     new fn4(true, null); // Error
-            ~~~~
-!!! error TS2345: Argument of type 'true' is not assignable to parameter of type 'number'.
+    ~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(n: string, m: any): any', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'string'.
+!!! error TS2769:   Overload 2 of 2, '(n: number, m: any): any', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'number'.
     new fn4(null, true); // Error
-                  ~~~~
-!!! error TS2345: Argument of type 'true' is not assignable to parameter of type 'string'.
+    ~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(n: any, m: number): any', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'number'.
+!!! error TS2769:   Overload 2 of 2, '(n: any, m: string): any', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'string'.
     
     // Non - generic overloads where contextual typing of function arguments has errors
     interface fn5 {

tests/baselines/reference/overloadResolutionTest1.errors.txt

@@ -1,6 +1,18 @@
-tests/cases/compiler/overloadResolutionTest1.ts(7,18): error TS2322: Type 'string' is not assignable to type 'boolean'.
-tests/cases/compiler/overloadResolutionTest1.ts(18,16): error TS2322: Type 'string' is not assignable to type 'boolean'.
-tests/cases/compiler/overloadResolutionTest1.ts(24,15): error TS2322: Type 'true' is not assignable to type 'string'.
+tests/cases/compiler/overloadResolutionTest1.ts(7,12): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(bar: { a: number; }[]): string', gave the following error.
+    Type 'string' is not assignable to type 'number'.
+  Overload 2 of 2, '(bar: { a: boolean; }[]): number', gave the following error.
+    Type 'string' is not assignable to type 'boolean'.
+tests/cases/compiler/overloadResolutionTest1.ts(18,10): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(bar: { a: number; }): string', gave the following error.
+    Type 'string' is not assignable to type 'number'.
+  Overload 2 of 2, '(bar: { a: boolean; }): number', gave the following error.
+    Type 'string' is not assignable to type 'boolean'.
+tests/cases/compiler/overloadResolutionTest1.ts(24,9): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(bar: { a: number; }): number', gave the following error.
+    Type 'true' is not assignable to type 'number'.
+  Overload 2 of 2, '(bar: { a: string; }): string', gave the following error.
+    Type 'true' is not assignable to type 'string'.
 
 
 ==== tests/cases/compiler/overloadResolutionTest1.ts (3 errors) ====
@@ -11,8 +23,13 @@ tests/cases/compiler/overloadResolutionTest1.ts(24,15): error TS2322: Type 'true
     var x1 = foo([{a:true}]); // works
     var x11 = foo([{a:0}]); // works
     var x111 = foo([{a:"s"}]); // error - does not match any signature
-                     ~
-!!! error TS2322: Type 'string' is not assignable to type 'boolean'.
+               ~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(bar: { a: number; }[]): string', gave the following error.
+!!! error TS2769:     Type 'string' is not assignable to type 'number'.
+!!! error TS2769:   Overload 2 of 2, '(bar: { a: boolean; }[]): number', gave the following error.
+!!! error TS2769:     Type 'string' is not assignable to type 'boolean'.
+!!! related TS6500 tests/cases/compiler/overloadResolutionTest1.ts:1:19: The expected type comes from property 'a' which is declared here on type '{ a: number; }'
 !!! related TS6500 tests/cases/compiler/overloadResolutionTest1.ts:2:19: The expected type comes from property 'a' which is declared here on type '{ a: boolean; }'
     var x1111 = foo([{a:null}]); // works - ambiguous call is resolved to be the first in the overload set so this returns a string
     
@@ -25,8 +42,13 @@ tests/cases/compiler/overloadResolutionTest1.ts(24,15): error TS2322: Type 'true
     var x2 = foo2({a:0}); // works
     var x3 = foo2({a:true}); // works
     var x4 = foo2({a:"s"}); // error
-                   ~
-!!! error TS2322: Type 'string' is not assignable to type 'boolean'.
+             ~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(bar: { a: number; }): string', gave the following error.
+!!! error TS2769:     Type 'string' is not assignable to type 'number'.
+!!! error TS2769:   Overload 2 of 2, '(bar: { a: boolean; }): number', gave the following error.
+!!! error TS2769:     Type 'string' is not assignable to type 'boolean'.
+!!! related TS6500 tests/cases/compiler/overloadResolutionTest1.ts:12:20: The expected type comes from property 'a' which is declared here on type '{ a: number; }'
 !!! related TS6500 tests/cases/compiler/overloadResolutionTest1.ts:13:20: The expected type comes from property 'a' which is declared here on type '{ a: boolean; }'
     
     
@@ -34,6 +56,11 @@ tests/cases/compiler/overloadResolutionTest1.ts(24,15): error TS2322: Type 'true
     function foo4(bar:{a:string;}):string;
     function foo4(bar:{a:any;}):any{ return bar };
     var x = foo4({a:true}); // error
-                  ~
-!!! error TS2322: Type 'true' is not assignable to type 'string'.
+            ~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(bar: { a: number; }): number', gave the following error.
+!!! error TS2769:     Type 'true' is not assignable to type 'number'.
+!!! error TS2769:   Overload 2 of 2, '(bar: { a: string; }): string', gave the following error.
+!!! error TS2769:     Type 'true' is not assignable to type 'string'.
+!!! related TS6500 tests/cases/compiler/overloadResolutionTest1.ts:21:20: The expected type comes from property 'a' which is declared here on type '{ a: number; }'
 !!! related TS6500 tests/cases/compiler/overloadResolutionTest1.ts:22:20: The expected type comes from property 'a' which is declared here on type '{ a: string; }'

tests/baselines/reference/overloadingOnConstants2.errors.txt

@@ -1,5 +1,9 @@
 tests/cases/compiler/overloadingOnConstants2.ts(9,10): error TS2394: This overload signature is not compatible with its implementation signature.
-tests/cases/compiler/overloadingOnConstants2.ts(15,13): error TS2345: Argument of type '"um"' is not assignable to parameter of type '"bye"'.
+tests/cases/compiler/overloadingOnConstants2.ts(15,9): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(x: "hi", items: string[]): D', gave the following error.
+    Argument of type '"um"' is not assignable to parameter of type '"hi"'.
+  Overload 2 of 2, '(x: "bye", items: string[]): E', gave the following error.
+    Argument of type '"um"' is not assignable to parameter of type '"bye"'.
 tests/cases/compiler/overloadingOnConstants2.ts(19,10): error TS2394: This overload signature is not compatible with its implementation signature.
 
 
@@ -22,8 +26,12 @@ tests/cases/compiler/overloadingOnConstants2.ts(19,10): error TS2394: This overl
     var a: D = foo("hi", []); // D
     var b: E = foo("bye", []); // E 
     var c = foo("um", []); // error
-                ~~~~
-!!! error TS2345: Argument of type '"um"' is not assignable to parameter of type '"bye"'.
+            ~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(x: "hi", items: string[]): D', gave the following error.
+!!! error TS2769:     Argument of type '"um"' is not assignable to parameter of type '"hi"'.
+!!! error TS2769:   Overload 2 of 2, '(x: "bye", items: string[]): E', gave the following error.
+!!! error TS2769:     Argument of type '"um"' is not assignable to parameter of type '"bye"'.
     
     
     //function bar(x: "hi", items: string[]): D;

tests/baselines/reference/overloadresolutionWithConstraintCheckingDeferred.errors.txt

@@ -3,9 +3,18 @@ tests/cases/compiler/overloadresolutionWithConstraintCheckingDeferred.ts(14,37):
   Property 'x' is missing in type 'D' but required in type 'A'.
 tests/cases/compiler/overloadresolutionWithConstraintCheckingDeferred.ts(16,5): error TS2322: Type 'string' is not assignable to type 'number'.
 tests/cases/compiler/overloadresolutionWithConstraintCheckingDeferred.ts(16,38): error TS2344: Type 'D' does not satisfy the constraint 'A'.
-tests/cases/compiler/overloadresolutionWithConstraintCheckingDeferred.ts(18,27): error TS2345: Argument of type '(x: D) => G<D>' is not assignable to parameter of type '(x: B) => any'.
-  Types of parameters 'x' and 'x' are incompatible.
-    Property 'q' is missing in type 'B' but required in type 'D'.
+tests/cases/compiler/overloadresolutionWithConstraintCheckingDeferred.ts(18,23): error TS2769: No overload matches this call.
+  Overload 1 of 3, '(arg: (x: D) => number): string', gave the following error.
+    Argument of type '(x: D) => G<D>' is not assignable to parameter of type '(x: D) => number'.
+      Type 'G<D>' is not assignable to type 'number'.
+  Overload 2 of 3, '(arg: (x: C) => any): string', gave the following error.
+    Argument of type '(x: D) => G<D>' is not assignable to parameter of type '(x: C) => any'.
+      Types of parameters 'x' and 'x' are incompatible.
+        Property 'q' is missing in type 'C' but required in type 'D'.
+  Overload 3 of 3, '(arg: (x: B) => any): number', gave the following error.
+    Argument of type '(x: D) => G<D>' is not assignable to parameter of type '(x: B) => any'.
+      Types of parameters 'x' and 'x' are incompatible.
+        Property 'q' is missing in type 'B' but required in type 'D'.
 tests/cases/compiler/overloadresolutionWithConstraintCheckingDeferred.ts(19,14): error TS2344: Type 'D' does not satisfy the constraint 'A'.
 
 
@@ -38,14 +47,27 @@ tests/cases/compiler/overloadresolutionWithConstraintCheckingDeferred.ts(19,14):
 !!! error TS2344: Type 'D' does not satisfy the constraint 'A'.
     
     var result3: string = foo(x => { // x has type D
-                              ~~~~~~~~~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: D) => G<D>' is not assignable to parameter of type '(x: B) => any'.
-!!! error TS2345:   Types of parameters 'x' and 'x' are incompatible.
-!!! error TS2345:     Property 'q' is missing in type 'B' but required in type 'D'.
-!!! related TS2728 tests/cases/compiler/overloadresolutionWithConstraintCheckingDeferred.ts:4:15: 'q' is declared here.
+                          ~~~~~~~~~~~~~~~~~~~~~~~~~~
         var y: G<typeof x>; // error that D does not satisfy constraint, y is of type G<D>, entire call to foo is an error
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                  ~~~~~~~~
 !!! error TS2344: Type 'D' does not satisfy the constraint 'A'.
         return y;
+    ~~~~~~~~~~~~~
     });
+    ~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 3, '(arg: (x: D) => number): string', gave the following error.
+!!! error TS2769:     Argument of type '(x: D) => G<D>' is not assignable to parameter of type '(x: D) => number'.
+!!! error TS2769:       Type 'G<D>' is not assignable to type 'number'.
+!!! error TS2769:   Overload 2 of 3, '(arg: (x: C) => any): string', gave the following error.
+!!! error TS2769:     Argument of type '(x: D) => G<D>' is not assignable to parameter of type '(x: C) => any'.
+!!! error TS2769:       Types of parameters 'x' and 'x' are incompatible.
+!!! error TS2769:         Property 'q' is missing in type 'C' but required in type 'D'.
+!!! error TS2769:   Overload 3 of 3, '(arg: (x: B) => any): number', gave the following error.
+!!! error TS2769:     Argument of type '(x: D) => G<D>' is not assignable to parameter of type '(x: B) => any'.
+!!! error TS2769:       Types of parameters 'x' and 'x' are incompatible.
+!!! error TS2769:         Property 'q' is missing in type 'B' but required in type 'D'.
+!!! related TS2728 tests/cases/compiler/overloadresolutionWithConstraintCheckingDeferred.ts:4:15: 'q' is declared here.
+!!! related TS2728 tests/cases/compiler/overloadresolutionWithConstraintCheckingDeferred.ts:4:15: 'q' is declared here.
     

tests/baselines/reference/overloadsWithProvisionalErrors.errors.txt

@@ -1,6 +1,14 @@
-tests/cases/compiler/overloadsWithProvisionalErrors.ts(6,11): error TS2739: Type '{}' is missing the following properties from type '{ a: number; b: number; }': a, b
+tests/cases/compiler/overloadsWithProvisionalErrors.ts(6,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(s: string): number', gave the following error.
+    Argument of type '(s: string) => {}' is not assignable to parameter of type 'string'.
+  Overload 2 of 2, '(lambda: (s: string) => { a: number; b: number; }): string', gave the following error.
+    Type '{}' is missing the following properties from type '{ a: number; b: number; }': a, b
 tests/cases/compiler/overloadsWithProvisionalErrors.ts(7,17): error TS2304: Cannot find name 'blah'.
-tests/cases/compiler/overloadsWithProvisionalErrors.ts(8,11): error TS2741: Property 'b' is missing in type '{ a: any; }' but required in type '{ a: number; b: number; }'.
+tests/cases/compiler/overloadsWithProvisionalErrors.ts(8,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(s: string): number', gave the following error.
+    Argument of type '(s: string) => { a: any; }' is not assignable to parameter of type 'string'.
+  Overload 2 of 2, '(lambda: (s: string) => { a: number; b: number; }): string', gave the following error.
+    Property 'b' is missing in type '{ a: any; }' but required in type '{ a: number; b: number; }'.
 tests/cases/compiler/overloadsWithProvisionalErrors.ts(8,17): error TS2304: Cannot find name 'blah'.
 
 
@@ -11,15 +19,23 @@ tests/cases/compiler/overloadsWithProvisionalErrors.ts(8,17): error TS2304: Cann
     };
     
     func(s => ({})); // Error for no applicable overload (object type is missing a and b)
-              ~~~~
-!!! error TS2739: Type '{}' is missing the following properties from type '{ a: number; b: number; }': a, b
+    ~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(s: string): number', gave the following error.
+!!! error TS2769:     Argument of type '(s: string) => {}' is not assignable to parameter of type 'string'.
+!!! error TS2769:   Overload 2 of 2, '(lambda: (s: string) => { a: number; b: number; }): string', gave the following error.
+!!! error TS2769:     Type '{}' is missing the following properties from type '{ a: number; b: number; }': a, b
 !!! related TS6502 tests/cases/compiler/overloadsWithProvisionalErrors.ts:3:14: The expected type comes from the return type of this signature.
     func(s => ({ a: blah, b: 3 })); // Only error inside the function, but not outside (since it would be applicable if not for the provisional error)
                     ~~~~
 !!! error TS2304: Cannot find name 'blah'.
     func(s => ({ a: blah })); // Two errors here, one for blah not being defined, and one for the overload since it would not be applicable anyway
-              ~~~~~~~~~~~~~
-!!! error TS2741: Property 'b' is missing in type '{ a: any; }' but required in type '{ a: number; b: number; }'.
+    ~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(s: string): number', gave the following error.
+!!! error TS2769:     Argument of type '(s: string) => { a: any; }' is not assignable to parameter of type 'string'.
+!!! error TS2769:   Overload 2 of 2, '(lambda: (s: string) => { a: number; b: number; }): string', gave the following error.
+!!! error TS2769:     Property 'b' is missing in type '{ a: any; }' but required in type '{ a: number; b: number; }'.
 !!! related TS2728 tests/cases/compiler/overloadsWithProvisionalErrors.ts:3:42: 'b' is declared here.
 !!! related TS6502 tests/cases/compiler/overloadsWithProvisionalErrors.ts:3:14: The expected type comes from the return type of this signature.
                     ~~~~

tests/baselines/reference/promisePermutations.errors.txt

@@ -1,67 +1,133 @@
-tests/cases/compiler/promisePermutations.ts(74,70): error TS2345: Argument of type '(x: number) => IPromise<number>' is not assignable to parameter of type '(value: IPromise<number>) => IPromise<number>'.
-  Types of parameters 'x' and 'value' are incompatible.
-    Type 'IPromise<number>' is not assignable to type 'number'.
-tests/cases/compiler/promisePermutations.ts(79,19): error TS2345: Argument of type '(x: number, y?: string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-  Types of parameters 'x' and 'value' are incompatible.
-    Type 'string' is not assignable to type 'number'.
-tests/cases/compiler/promisePermutations.ts(82,19): error TS2345: Argument of type '(x: number, y?: string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-  Types of parameters 'x' and 'value' are incompatible.
-    Type 'string' is not assignable to type 'number'.
-tests/cases/compiler/promisePermutations.ts(83,19): error TS2345: Argument of type '(x: number, y?: string) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
-  Types of parameters 'x' and 'value' are incompatible.
-    Type 'string' is not assignable to type 'number'.
-tests/cases/compiler/promisePermutations.ts(84,19): error TS2345: Argument of type '(x: number, y?: string) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-  Types of parameters 'x' and 'value' are incompatible.
-    Type 'string' is not assignable to type 'number'.
-tests/cases/compiler/promisePermutations.ts(88,19): error TS2345: Argument of type '(x: number, cb: (a: string) => string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-tests/cases/compiler/promisePermutations.ts(91,19): error TS2345: Argument of type '(x: number, cb: (a: string) => string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-tests/cases/compiler/promisePermutations.ts(92,19): error TS2345: Argument of type '(x: number, cb: (a: string) => string) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
-tests/cases/compiler/promisePermutations.ts(93,19): error TS2345: Argument of type '(x: number, cb: (a: string) => string) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-tests/cases/compiler/promisePermutations.ts(97,19): error TS2345: Argument of type '(x: number, cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-tests/cases/compiler/promisePermutations.ts(100,19): error TS2345: Argument of type '(x: number, cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-tests/cases/compiler/promisePermutations.ts(101,19): error TS2345: Argument of type '(x: number, cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
-tests/cases/compiler/promisePermutations.ts(102,19): error TS2345: Argument of type '(x: number, cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-tests/cases/compiler/promisePermutations.ts(106,19): error TS2345: Argument of type '(cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-  Types of parameters 'cb' and 'value' are incompatible.
-    Type 'string' is not assignable to type '<T>(a: T) => T'.
-tests/cases/compiler/promisePermutations.ts(109,19): error TS2345: Argument of type '(cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-tests/cases/compiler/promisePermutations.ts(110,19): error TS2345: Argument of type '(cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
-  Types of parameters 'cb' and 'value' are incompatible.
-    Type 'string' is not assignable to type '<T>(a: T) => T'.
-tests/cases/compiler/promisePermutations.ts(111,19): error TS2345: Argument of type '(cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-  Types of parameters 'cb' and 'value' are incompatible.
-    Type 'string' is not assignable to type '<T>(a: T) => T'.
-tests/cases/compiler/promisePermutations.ts(117,19): error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
-tests/cases/compiler/promisePermutations.ts(120,19): error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
-tests/cases/compiler/promisePermutations.ts(121,19): error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => Promise<T>' is not assignable to parameter of type '(value: number) => Promise<any>'.
-tests/cases/compiler/promisePermutations.ts(122,19): error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => Promise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
-tests/cases/compiler/promisePermutations.ts(126,19): error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
-tests/cases/compiler/promisePermutations.ts(129,33): error TS2345: Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
-  Type 'IPromise<string>' is not assignable to type 'IPromise<number>'.
-    Type 'string' is not assignable to type 'number'.
-tests/cases/compiler/promisePermutations.ts(132,19): error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
-tests/cases/compiler/promisePermutations.ts(133,19): error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => Promise<T>' is not assignable to parameter of type '(value: number) => Promise<any>'.
-tests/cases/compiler/promisePermutations.ts(134,19): error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => Promise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
-tests/cases/compiler/promisePermutations.ts(137,33): error TS2345: Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
-  Type 'IPromise<string>' is not assignable to type 'IPromise<number>'.
-tests/cases/compiler/promisePermutations.ts(144,35): error TS2345: Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
-tests/cases/compiler/promisePermutations.ts(152,36): error TS2345: Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => Promise<number>'.
-  Property 'catch' is missing in type 'IPromise<string>' but required in type 'Promise<number>'.
-tests/cases/compiler/promisePermutations.ts(156,21): error TS2345: Argument of type '{ (x: number): IPromise<number>; (x: string): IPromise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
-  Type 'IPromise<number>' is not assignable to type 'IPromise<string>'.
-    Type 'number' is not assignable to type 'string'.
-tests/cases/compiler/promisePermutations.ts(158,21): error TS2345: Argument of type '{ (x: number): IPromise<number>; (x: string): IPromise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
-  Type 'IPromise<number>' is not assignable to type 'IPromise<string>'.
-tests/cases/compiler/promisePermutations.ts(159,21): error TS2345: Argument of type '{ (x: number): Promise<number>; (x: string): Promise<string>; }' is not assignable to parameter of type '(value: number) => Promise<string>'.
-  Type 'Promise<number>' is not assignable to type 'Promise<string>'.
-    Type 'number' is not assignable to type 'string'.
-tests/cases/compiler/promisePermutations.ts(160,21): error TS2345: Argument of type '{ (x: number): Promise<number>; (x: string): Promise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
-  Type 'Promise<number>' is not assignable to type 'IPromise<string>'.
-    Types of property 'then' are incompatible.
-      Type '{ <TResult1 = number, TResult2 = never>(onfulfilled?: (value: number) => TResult1 | PromiseLike<TResult1>, onrejected?: (reason: any) => TResult2 | PromiseLike<TResult2>): Promise<TResult1 | TResult2>; <U>(success?: (value: number) => Promise<U>, error?: (error: any) => Promise<U>, progress?: (progress: any) => void): Promise<U>; <U>(success?: (value: number) => Promise<U>, error?: (error: any) => U, progress?: (progress: any) => void): Promise<U>; <U>(success?: (value: number) => U, error?: (error: any) => Promise<U>, progress?: (progress: any) => void): Promise<U>; <U>(success?: (value: number) => U, error?: (error: any) => U, progress?: (progress: any) => void): Promise<U>; }' is not assignable to type '{ <U>(success?: (value: string) => IPromise<U>, error?: (error: any) => IPromise<U>, progress?: (progress: any) => void): IPromise<U>; <U>(success?: (value: string) => IPromise<U>, error?: (error: any) => U, progress?: (progress: any) => void): IPromise<U>; <U>(success?: (value: string) => U, error?: (error: any) => IPromise<U>, progress?: (progress: any) => void): IPromise<U>; <U>(success?: (value: string) => U, error?: (error: any) => U, progress?: (progress: any) => void): IPromise<U>; }'.
-        Types of parameters 'onfulfilled' and 'success' are incompatible.
-          Types of parameters 'value' and 'value' are incompatible.
-            Type 'number' is not assignable to type 'string'.
+tests/cases/compiler/promisePermutations.ts(74,70): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number) => IPromise<number>' is not assignable to parameter of type '(value: IPromise<number>) => IPromise<number>'.
+      Types of parameters 'x' and 'value' are incompatible.
+        Type 'IPromise<number>' is not assignable to type 'number'.
+tests/cases/compiler/promisePermutations.ts(79,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number, y?: string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+      Types of parameters 'x' and 'value' are incompatible.
+        Type 'string' is not assignable to type 'number'.
+tests/cases/compiler/promisePermutations.ts(82,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number, y?: string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+      Types of parameters 'x' and 'value' are incompatible.
+        Type 'string' is not assignable to type 'number'.
+tests/cases/compiler/promisePermutations.ts(83,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number, y?: string) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
+      Types of parameters 'x' and 'value' are incompatible.
+        Type 'string' is not assignable to type 'number'.
+tests/cases/compiler/promisePermutations.ts(84,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number, y?: string) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+      Types of parameters 'x' and 'value' are incompatible.
+        Type 'string' is not assignable to type 'number'.
+tests/cases/compiler/promisePermutations.ts(88,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number, cb: (a: string) => string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+tests/cases/compiler/promisePermutations.ts(91,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number, cb: (a: string) => string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+tests/cases/compiler/promisePermutations.ts(92,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number, cb: (a: string) => string) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
+tests/cases/compiler/promisePermutations.ts(93,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number, cb: (a: string) => string) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+tests/cases/compiler/promisePermutations.ts(97,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number, cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+tests/cases/compiler/promisePermutations.ts(100,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number, cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+tests/cases/compiler/promisePermutations.ts(101,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number, cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
+tests/cases/compiler/promisePermutations.ts(102,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number, cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+tests/cases/compiler/promisePermutations.ts(106,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+      Types of parameters 'cb' and 'value' are incompatible.
+        Type 'string' is not assignable to type '<T>(a: T) => T'.
+tests/cases/compiler/promisePermutations.ts(109,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+tests/cases/compiler/promisePermutations.ts(110,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
+      Types of parameters 'cb' and 'value' are incompatible.
+        Type 'string' is not assignable to type '<T>(a: T) => T'.
+tests/cases/compiler/promisePermutations.ts(111,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+      Types of parameters 'cb' and 'value' are incompatible.
+        Type 'string' is not assignable to type '<T>(a: T) => T'.
+tests/cases/compiler/promisePermutations.ts(117,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '<T>(x: T, cb: (a: T) => T) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+tests/cases/compiler/promisePermutations.ts(120,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '<T>(x: T, cb: (a: T) => T) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+tests/cases/compiler/promisePermutations.ts(121,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '<T>(x: T, cb: (a: T) => T) => Promise<T>' is not assignable to parameter of type '(value: number) => Promise<any>'.
+tests/cases/compiler/promisePermutations.ts(122,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '<T>(x: T, cb: (a: T) => T) => Promise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+tests/cases/compiler/promisePermutations.ts(126,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '<T>(x: T, cb: <U>(a: U) => U) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+tests/cases/compiler/promisePermutations.ts(129,33): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
+      Type 'IPromise<string>' is not assignable to type 'IPromise<number>'.
+        Type 'string' is not assignable to type 'number'.
+tests/cases/compiler/promisePermutations.ts(132,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '<T>(x: T, cb: <U>(a: U) => U) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+tests/cases/compiler/promisePermutations.ts(133,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '<T>(x: T, cb: <U>(a: U) => U) => Promise<T>' is not assignable to parameter of type '(value: number) => Promise<any>'.
+tests/cases/compiler/promisePermutations.ts(134,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '<T>(x: T, cb: <U>(a: U) => U) => Promise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+tests/cases/compiler/promisePermutations.ts(137,33): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
+      Type 'IPromise<string>' is not assignable to type 'IPromise<number>'.
+tests/cases/compiler/promisePermutations.ts(144,35): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
+tests/cases/compiler/promisePermutations.ts(152,36): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => Promise<number>'.
+      Property 'catch' is missing in type 'IPromise<string>' but required in type 'Promise<number>'.
+tests/cases/compiler/promisePermutations.ts(156,21): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '{ (x: number): IPromise<number>; (x: string): IPromise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
+      Type 'IPromise<number>' is not assignable to type 'IPromise<string>'.
+        Type 'number' is not assignable to type 'string'.
+tests/cases/compiler/promisePermutations.ts(158,21): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '{ (x: number): IPromise<number>; (x: string): IPromise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
+      Type 'IPromise<number>' is not assignable to type 'IPromise<string>'.
+tests/cases/compiler/promisePermutations.ts(159,21): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '{ (x: number): Promise<number>; (x: string): Promise<string>; }' is not assignable to parameter of type '(value: number) => Promise<string>'.
+      Type 'Promise<number>' is not assignable to type 'Promise<string>'.
+        Type 'number' is not assignable to type 'string'.
+tests/cases/compiler/promisePermutations.ts(160,21): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '{ (x: number): Promise<number>; (x: string): Promise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
+      Type 'Promise<number>' is not assignable to type 'IPromise<string>'.
+        Types of property 'then' are incompatible.
+          Type '{ <TResult1 = number, TResult2 = never>(onfulfilled?: (value: number) => TResult1 | PromiseLike<TResult1>, onrejected?: (reason: any) => TResult2 | PromiseLike<TResult2>): Promise<TResult1 | TResult2>; <U>(success?: (value: number) => Promise<U>, error?: (error: any) => Promise<U>, progress?: (progress: any) => void): Promise<U>; <U>(success?: (value: number) => Promise<U>, error?: (error: any) => U, progress?: (progress: any) => void): Promise<U>; <U>(success?: (value: number) => U, error?: (error: any) => Promise<U>, progress?: (progress: any) => void): Promise<U>; <U>(success?: (value: number) => U, error?: (error: any) => U, progress?: (progress: any) => void): Promise<U>; }' is not assignable to type '{ <U>(success?: (value: string) => IPromise<U>, error?: (error: any) => IPromise<U>, progress?: (progress: any) => void): IPromise<U>; <U>(success?: (value: string) => IPromise<U>, error?: (error: any) => U, progress?: (progress: any) => void): IPromise<U>; <U>(success?: (value: string) => U, error?: (error: any) => IPromise<U>, progress?: (progress: any) => void): IPromise<U>; <U>(success?: (value: string) => U, error?: (error: any) => U, progress?: (progress: any) => void): IPromise<U>; }'.
+            Types of parameters 'onfulfilled' and 'success' are incompatible.
+              Types of parameters 'value' and 'value' are incompatible.
+                Type 'number' is not assignable to type 'string'.
 
 
 ==== tests/cases/compiler/promisePermutations.ts (33 errors) ====
@@ -140,92 +206,143 @@ tests/cases/compiler/promisePermutations.ts(160,21): error TS2345: Argument of t
     var s3c = s3.then(testFunction3P, testFunction3, testFunction3);
     var s3d = s3.then(testFunction3P, testFunction3, testFunction3).then(testFunction3, testFunction3, testFunction3); // error
                                                                          ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number) => IPromise<number>' is not assignable to parameter of type '(value: IPromise<number>) => IPromise<number>'.
-!!! error TS2345:   Types of parameters 'x' and 'value' are incompatible.
-!!! error TS2345:     Type 'IPromise<number>' is not assignable to type 'number'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number) => IPromise<number>' is not assignable to parameter of type '(value: IPromise<number>) => IPromise<number>'.
+!!! error TS2769:       Types of parameters 'x' and 'value' are incompatible.
+!!! error TS2769:         Type 'IPromise<number>' is not assignable to type 'number'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:5:5: The last overload is declared here.
     
     var r4: IPromise<string>;
     var sIPromise: (x: any) => IPromise<string>;
     var sPromise: (x: any) => Promise<string>;
     var r4a = r4.then(testFunction4, testFunction4, testFunction4); // error
                       ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number, y?: string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-!!! error TS2345:   Types of parameters 'x' and 'value' are incompatible.
-!!! error TS2345:     Type 'string' is not assignable to type 'number'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number, y?: string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! error TS2769:       Types of parameters 'x' and 'value' are incompatible.
+!!! error TS2769:         Type 'string' is not assignable to type 'number'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:13:5: The last overload is declared here.
     var r4b = r4.then(sIPromise, testFunction4, testFunction4).then(sIPromise, testFunction4, testFunction4); // ok
     var s4: Promise<string>;
     var s4a = s4.then(testFunction4, testFunction4, testFunction4); // error
                       ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number, y?: string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-!!! error TS2345:   Types of parameters 'x' and 'value' are incompatible.
-!!! error TS2345:     Type 'string' is not assignable to type 'number'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number, y?: string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! error TS2769:       Types of parameters 'x' and 'value' are incompatible.
+!!! error TS2769:         Type 'string' is not assignable to type 'number'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:5:5: The last overload is declared here.
     var s4b = s4.then(testFunction4P, testFunction4P, testFunction4P); // error 
                       ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number, y?: string) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
-!!! error TS2345:   Types of parameters 'x' and 'value' are incompatible.
-!!! error TS2345:     Type 'string' is not assignable to type 'number'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number, y?: string) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
+!!! error TS2769:       Types of parameters 'x' and 'value' are incompatible.
+!!! error TS2769:         Type 'string' is not assignable to type 'number'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:5:5: The last overload is declared here.
     var s4c = s4.then(testFunction4P, testFunction4, testFunction4); // error
                       ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number, y?: string) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-!!! error TS2345:   Types of parameters 'x' and 'value' are incompatible.
-!!! error TS2345:     Type 'string' is not assignable to type 'number'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number, y?: string) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! error TS2769:       Types of parameters 'x' and 'value' are incompatible.
+!!! error TS2769:         Type 'string' is not assignable to type 'number'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:5:5: The last overload is declared here.
     var s4d = s4.then(sIPromise, testFunction4P, testFunction4).then(sIPromise, testFunction4P, testFunction4);
     
     var r5: IPromise<string>;
     var r5a = r5.then(testFunction5, testFunction5, testFunction5); // error
                       ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number, cb: (a: string) => string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number, cb: (a: string) => string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:13:5: The last overload is declared here.
     var r5b = r5.then(sIPromise, sIPromise, sIPromise).then(sIPromise, sIPromise, sIPromise); // ok
     var s5: Promise<string>;
     var s5a = s5.then(testFunction5, testFunction5, testFunction5); // error
                       ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number, cb: (a: string) => string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number, cb: (a: string) => string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:5:5: The last overload is declared here.
     var s5b = s5.then(testFunction5P, testFunction5P, testFunction5P); // error
                       ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number, cb: (a: string) => string) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number, cb: (a: string) => string) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:5:5: The last overload is declared here.
     var s5c = s5.then(testFunction5P, testFunction5, testFunction5); // error
                       ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number, cb: (a: string) => string) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number, cb: (a: string) => string) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:5:5: The last overload is declared here.
     var s5d = s5.then(sPromise, sPromise, sPromise).then(sIPromise, sIPromise, sIPromise); // ok
     
     var r6: IPromise<string>;
     var r6a = r6.then(testFunction6, testFunction6, testFunction6); // error
                       ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number, cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number, cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:13:5: The last overload is declared here.
     var r6b = r6.then(sIPromise, sIPromise, sIPromise).then(sIPromise, sIPromise, sIPromise); // ok
     var s6: Promise<string>;
     var s6a = s6.then(testFunction6, testFunction6, testFunction6); // error
                       ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number, cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number, cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:5:5: The last overload is declared here.
     var s6b = s6.then(testFunction6P, testFunction6P, testFunction6P); // error
                       ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number, cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number, cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:5:5: The last overload is declared here.
     var s6c = s6.then(testFunction6P, testFunction6, testFunction6); // error
                       ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number, cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number, cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:5:5: The last overload is declared here.
     var s6d = s6.then(sPromise, sPromise, sPromise).then(sIPromise, sIPromise, sIPromise); // ok
     
     var r7: IPromise<string>;
     var r7a = r7.then(testFunction7, testFunction7, testFunction7); // error
                       ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-!!! error TS2345:   Types of parameters 'cb' and 'value' are incompatible.
-!!! error TS2345:     Type 'string' is not assignable to type '<T>(a: T) => T'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! error TS2769:       Types of parameters 'cb' and 'value' are incompatible.
+!!! error TS2769:         Type 'string' is not assignable to type '<T>(a: T) => T'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:13:5: The last overload is declared here.
     var r7b = r7.then(sIPromise, sIPromise, sIPromise).then(sIPromise, sIPromise, sIPromise); // ok
     var s7: Promise<string>;
     var s7a = r7.then(testFunction7, testFunction7, testFunction7); // error
                       ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:13:5: The last overload is declared here.
     var s7b = r7.then(testFunction7P, testFunction7P, testFunction7P); // error
                       ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
-!!! error TS2345:   Types of parameters 'cb' and 'value' are incompatible.
-!!! error TS2345:     Type 'string' is not assignable to type '<T>(a: T) => T'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
+!!! error TS2769:       Types of parameters 'cb' and 'value' are incompatible.
+!!! error TS2769:         Type 'string' is not assignable to type '<T>(a: T) => T'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:13:5: The last overload is declared here.
     var s7c = r7.then(testFunction7P, testFunction7, testFunction7); // error
                       ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-!!! error TS2345:   Types of parameters 'cb' and 'value' are incompatible.
-!!! error TS2345:     Type 'string' is not assignable to type '<T>(a: T) => T'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! error TS2769:       Types of parameters 'cb' and 'value' are incompatible.
+!!! error TS2769:         Type 'string' is not assignable to type '<T>(a: T) => T'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:13:5: The last overload is declared here.
     var s7d = r7.then(sPromise, sPromise, sPromise).then(sPromise, sPromise, sPromise); // ok?
     
     var r8: IPromise<number>;
@@ -233,48 +350,78 @@ tests/cases/compiler/promisePermutations.ts(160,21): error TS2345: Argument of t
     var nPromise: (x: any) => Promise<number>;
     var r8a = r8.then(testFunction8, testFunction8, testFunction8); // error
                       ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '<T>(x: T, cb: (a: T) => T) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:13:5: The last overload is declared here.
     var r8b = r8.then(nIPromise, nIPromise, nIPromise).then(nIPromise, nIPromise, nIPromise); // ok
     var s8: Promise<number>;
     var s8a = s8.then(testFunction8, testFunction8, testFunction8); // error
                       ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '<T>(x: T, cb: (a: T) => T) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:5:5: The last overload is declared here.
     var s8b = s8.then(testFunction8P, testFunction8P, testFunction8P); // error
                       ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => Promise<T>' is not assignable to parameter of type '(value: number) => Promise<any>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '<T>(x: T, cb: (a: T) => T) => Promise<T>' is not assignable to parameter of type '(value: number) => Promise<any>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:5:5: The last overload is declared here.
     var s8c = s8.then(testFunction8P, testFunction8, testFunction8); // error
                       ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => Promise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '<T>(x: T, cb: (a: T) => T) => Promise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:5:5: The last overload is declared here.
     var s8d = s8.then(nIPromise, nIPromise, nIPromise).then(nIPromise, nIPromise, nIPromise); // ok
     
     var r9: IPromise<number>;
     var r9a = r9.then(testFunction9, testFunction9, testFunction9); // error
                       ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '<T>(x: T, cb: <U>(a: U) => U) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:13:5: The last overload is declared here.
     var r9b = r9.then(sIPromise, sIPromise, sIPromise); // ok
     var r9c = r9.then(nIPromise, nIPromise, nIPromise); // ok
     var r9d = r9.then(testFunction, sIPromise, nIPromise); // ok
                                     ~~~~~~~~~
-!!! error TS2345: Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
-!!! error TS2345:   Type 'IPromise<string>' is not assignable to type 'IPromise<number>'.
-!!! error TS2345:     Type 'string' is not assignable to type 'number'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
+!!! error TS2769:       Type 'IPromise<string>' is not assignable to type 'IPromise<number>'.
+!!! error TS2769:         Type 'string' is not assignable to type 'number'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:13:5: The last overload is declared here.
     var r9e = r9.then(testFunction, nIPromise, sIPromise).then(sIPromise, sIPromise, sIPromise); // ok
     var s9: Promise<number>;
     var s9a = s9.then(testFunction9, testFunction9, testFunction9); // error
                       ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '<T>(x: T, cb: <U>(a: U) => U) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:5:5: The last overload is declared here.
     var s9b = s9.then(testFunction9P, testFunction9P, testFunction9P); // error
                       ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => Promise<T>' is not assignable to parameter of type '(value: number) => Promise<any>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '<T>(x: T, cb: <U>(a: U) => U) => Promise<T>' is not assignable to parameter of type '(value: number) => Promise<any>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:5:5: The last overload is declared here.
     var s9c = s9.then(testFunction9P, testFunction9, testFunction9); // error
                       ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => Promise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '<T>(x: T, cb: <U>(a: U) => U) => Promise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:5:5: The last overload is declared here.
     var s9d = s9.then(sPromise, sPromise, sPromise); // ok
     var s9e = s9.then(nPromise, nPromise, nPromise); // ok
     var s9f = s9.then(testFunction, sIPromise, nIPromise); // error
                                     ~~~~~~~~~
-!!! error TS2345: Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
-!!! error TS2345:   Type 'IPromise<string>' is not assignable to type 'IPromise<number>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
+!!! error TS2769:       Type 'IPromise<string>' is not assignable to type 'IPromise<number>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:5:5: The last overload is declared here.
     var s9g = s9.then(testFunction, nIPromise, sIPromise).then(sIPromise, sIPromise, sIPromise); // ok
     
     var r10 = testFunction10(x => x);
@@ -283,7 +430,10 @@ tests/cases/compiler/promisePermutations.ts(160,21): error TS2345: Argument of t
     var r10c = r10.then(nIPromise, nIPromise, nIPromise); // ok
     var r10d = r10.then(testFunction, sIPromise, nIPromise); // ok
                                       ~~~~~~~~~
-!!! error TS2345: Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:13:5: The last overload is declared here.
     var r10e = r10.then(testFunction, nIPromise, sIPromise).then(sIPromise, sIPromise, sIPromise); // ok
     var s10 = testFunction10P(x => x);
     var s10a = s10.then(testFunction10, testFunction10, testFunction10); // ok
@@ -293,36 +443,51 @@ tests/cases/compiler/promisePermutations.ts(160,21): error TS2345: Argument of t
     var s10e = s10.then(nIPromise, nPromise, nIPromise); // ok
     var s10f = s10.then(testFunctionP, sIPromise, nIPromise); // error
                                        ~~~~~~~~~
-!!! error TS2345: Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => Promise<number>'.
-!!! error TS2345:   Property 'catch' is missing in type 'IPromise<string>' but required in type 'Promise<number>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => Promise<number>'.
+!!! error TS2769:       Property 'catch' is missing in type 'IPromise<string>' but required in type 'Promise<number>'.
 !!! related TS2728 /.ts/lib.es5.d.ts:1413:5: 'catch' is declared here.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:5:5: The last overload is declared here.
     var s10g = s10.then(testFunctionP, nIPromise, sIPromise).then(sPromise, sIPromise, sIPromise); // ok
     
     var r11: IPromise<number>;
     var r11a = r11.then(testFunction11, testFunction11, testFunction11); // error
                         ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '{ (x: number): IPromise<number>; (x: string): IPromise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
-!!! error TS2345:   Type 'IPromise<number>' is not assignable to type 'IPromise<string>'.
-!!! error TS2345:     Type 'number' is not assignable to type 'string'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '{ (x: number): IPromise<number>; (x: string): IPromise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
+!!! error TS2769:       Type 'IPromise<number>' is not assignable to type 'IPromise<string>'.
+!!! error TS2769:         Type 'number' is not assignable to type 'string'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:13:5: The last overload is declared here.
     var s11: Promise<number>;
     var s11a = s11.then(testFunction11, testFunction11, testFunction11); // ok
                         ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '{ (x: number): IPromise<number>; (x: string): IPromise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
-!!! error TS2345:   Type 'IPromise<number>' is not assignable to type 'IPromise<string>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '{ (x: number): IPromise<number>; (x: string): IPromise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
+!!! error TS2769:       Type 'IPromise<number>' is not assignable to type 'IPromise<string>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:5:5: The last overload is declared here.
     var s11b = s11.then(testFunction11P, testFunction11P, testFunction11P); // error
                         ~~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '{ (x: number): Promise<number>; (x: string): Promise<string>; }' is not assignable to parameter of type '(value: number) => Promise<string>'.
-!!! error TS2345:   Type 'Promise<number>' is not assignable to type 'Promise<string>'.
-!!! error TS2345:     Type 'number' is not assignable to type 'string'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '{ (x: number): Promise<number>; (x: string): Promise<string>; }' is not assignable to parameter of type '(value: number) => Promise<string>'.
+!!! error TS2769:       Type 'Promise<number>' is not assignable to type 'Promise<string>'.
+!!! error TS2769:         Type 'number' is not assignable to type 'string'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:5:5: The last overload is declared here.
     var s11c = s11.then(testFunction11P, testFunction11, testFunction11); // error
                         ~~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '{ (x: number): Promise<number>; (x: string): Promise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
-!!! error TS2345:   Type 'Promise<number>' is not assignable to type 'IPromise<string>'.
-!!! error TS2345:     Types of property 'then' are incompatible.
-!!! error TS2345:       Type '{ <TResult1 = number, TResult2 = never>(onfulfilled?: (value: number) => TResult1 | PromiseLike<TResult1>, onrejected?: (reason: any) => TResult2 | PromiseLike<TResult2>): Promise<TResult1 | TResult2>; <U>(success?: (value: number) => Promise<U>, error?: (error: any) => Promise<U>, progress?: (progress: any) => void): Promise<U>; <U>(success?: (value: number) => Promise<U>, error?: (error: any) => U, progress?: (progress: any) => void): Promise<U>; <U>(success?: (value: number) => U, error?: (error: any) => Promise<U>, progress?: (progress: any) => void): Promise<U>; <U>(success?: (value: number) => U, error?: (error: any) => U, progress?: (progress: any) => void): Promise<U>; }' is not assignable to type '{ <U>(success?: (value: string) => IPromise<U>, error?: (error: any) => IPromise<U>, progress?: (progress: any) => void): IPromise<U>; <U>(success?: (value: string) => IPromise<U>, error?: (error: any) => U, progress?: (progress: any) => void): IPromise<U>; <U>(success?: (value: string) => U, error?: (error: any) => IPromise<U>, progress?: (progress: any) => void): IPromise<U>; <U>(success?: (value: string) => U, error?: (error: any) => U, progress?: (progress: any) => void): IPromise<U>; }'.
-!!! error TS2345:         Types of parameters 'onfulfilled' and 'success' are incompatible.
-!!! error TS2345:           Types of parameters 'value' and 'value' are incompatible.
-!!! error TS2345:             Type 'number' is not assignable to type 'string'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '{ (x: number): Promise<number>; (x: string): Promise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
+!!! error TS2769:       Type 'Promise<number>' is not assignable to type 'IPromise<string>'.
+!!! error TS2769:         Types of property 'then' are incompatible.
+!!! error TS2769:           Type '{ <TResult1 = number, TResult2 = never>(onfulfilled?: (value: number) => TResult1 | PromiseLike<TResult1>, onrejected?: (reason: any) => TResult2 | PromiseLike<TResult2>): Promise<TResult1 | TResult2>; <U>(success?: (value: number) => Promise<U>, error?: (error: any) => Promise<U>, progress?: (progress: any) => void): Promise<U>; <U>(success?: (value: number) => Promise<U>, error?: (error: any) => U, progress?: (progress: any) => void): Promise<U>; <U>(success?: (value: number) => U, error?: (error: any) => Promise<U>, progress?: (progress: any) => void): Promise<U>; <U>(success?: (value: number) => U, error?: (error: any) => U, progress?: (progress: any) => void): Promise<U>; }' is not assignable to type '{ <U>(success?: (value: string) => IPromise<U>, error?: (error: any) => IPromise<U>, progress?: (progress: any) => void): IPromise<U>; <U>(success?: (value: string) => IPromise<U>, error?: (error: any) => U, progress?: (progress: any) => void): IPromise<U>; <U>(success?: (value: string) => U, error?: (error: any) => IPromise<U>, progress?: (progress: any) => void): IPromise<U>; <U>(success?: (value: string) => U, error?: (error: any) => U, progress?: (progress: any) => void): IPromise<U>; }'.
+!!! error TS2769:             Types of parameters 'onfulfilled' and 'success' are incompatible.
+!!! error TS2769:               Types of parameters 'value' and 'value' are incompatible.
+!!! error TS2769:                 Type 'number' is not assignable to type 'string'.
+!!! related TS2771 tests/cases/compiler/promisePermutations.ts:5:5: The last overload is declared here.
     
     var r12 = testFunction12(x => x);
     var r12a = r12.then(testFunction12, testFunction12, testFunction12); // ok

tests/baselines/reference/promisePermutations2.errors.txt

@@ -1,9 +1,11 @@
 tests/cases/compiler/promisePermutations2.ts(73,70): error TS2345: Argument of type '(x: number) => IPromise<number>' is not assignable to parameter of type '(value: IPromise<number>) => IPromise<number>'.
   Types of parameters 'x' and 'value' are incompatible.
     Type 'IPromise<number>' is not assignable to type 'number'.
-tests/cases/compiler/promisePermutations2.ts(78,19): error TS2345: Argument of type '(x: number, y?: string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-  Types of parameters 'x' and 'value' are incompatible.
-    Type 'string' is not assignable to type 'number'.
+tests/cases/compiler/promisePermutations2.ts(78,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number, y?: string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+      Types of parameters 'x' and 'value' are incompatible.
+        Type 'string' is not assignable to type 'number'.
 tests/cases/compiler/promisePermutations2.ts(81,19): error TS2345: Argument of type '(x: number, y?: string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
   Types of parameters 'x' and 'value' are incompatible.
     Type 'string' is not assignable to type 'number'.
@@ -13,43 +15,65 @@ tests/cases/compiler/promisePermutations2.ts(82,19): error TS2345: Argument of t
 tests/cases/compiler/promisePermutations2.ts(83,19): error TS2345: Argument of type '(x: number, y?: string) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
   Types of parameters 'x' and 'value' are incompatible.
     Type 'string' is not assignable to type 'number'.
-tests/cases/compiler/promisePermutations2.ts(87,19): error TS2345: Argument of type '(x: number, cb: (a: string) => string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+tests/cases/compiler/promisePermutations2.ts(87,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number, cb: (a: string) => string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
 tests/cases/compiler/promisePermutations2.ts(90,19): error TS2345: Argument of type '(x: number, cb: (a: string) => string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
 tests/cases/compiler/promisePermutations2.ts(91,19): error TS2345: Argument of type '(x: number, cb: (a: string) => string) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
 tests/cases/compiler/promisePermutations2.ts(92,19): error TS2345: Argument of type '(x: number, cb: (a: string) => string) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-tests/cases/compiler/promisePermutations2.ts(96,19): error TS2345: Argument of type '(x: number, cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+tests/cases/compiler/promisePermutations2.ts(96,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number, cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
 tests/cases/compiler/promisePermutations2.ts(99,19): error TS2345: Argument of type '(x: number, cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
 tests/cases/compiler/promisePermutations2.ts(100,19): error TS2345: Argument of type '(x: number, cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
 tests/cases/compiler/promisePermutations2.ts(101,19): error TS2345: Argument of type '(x: number, cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-tests/cases/compiler/promisePermutations2.ts(105,19): error TS2345: Argument of type '(cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-  Types of parameters 'cb' and 'value' are incompatible.
-    Type 'string' is not assignable to type '<T>(a: T) => T'.
-tests/cases/compiler/promisePermutations2.ts(108,19): error TS2345: Argument of type '(cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-tests/cases/compiler/promisePermutations2.ts(109,19): error TS2345: Argument of type '(cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
-  Types of parameters 'cb' and 'value' are incompatible.
-    Type 'string' is not assignable to type '<T>(a: T) => T'.
-tests/cases/compiler/promisePermutations2.ts(110,19): error TS2345: Argument of type '(cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-  Types of parameters 'cb' and 'value' are incompatible.
-    Type 'string' is not assignable to type '<T>(a: T) => T'.
-tests/cases/compiler/promisePermutations2.ts(116,19): error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+tests/cases/compiler/promisePermutations2.ts(105,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+      Types of parameters 'cb' and 'value' are incompatible.
+        Type 'string' is not assignable to type '<T>(a: T) => T'.
+tests/cases/compiler/promisePermutations2.ts(108,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+tests/cases/compiler/promisePermutations2.ts(109,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
+      Types of parameters 'cb' and 'value' are incompatible.
+        Type 'string' is not assignable to type '<T>(a: T) => T'.
+tests/cases/compiler/promisePermutations2.ts(110,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+      Types of parameters 'cb' and 'value' are incompatible.
+        Type 'string' is not assignable to type '<T>(a: T) => T'.
+tests/cases/compiler/promisePermutations2.ts(116,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '<T>(x: T, cb: (a: T) => T) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
 tests/cases/compiler/promisePermutations2.ts(119,19): error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
 tests/cases/compiler/promisePermutations2.ts(120,19): error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => Promise<T>' is not assignable to parameter of type '(value: number) => Promise<any>'.
 tests/cases/compiler/promisePermutations2.ts(121,19): error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => Promise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
-tests/cases/compiler/promisePermutations2.ts(125,19): error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
-tests/cases/compiler/promisePermutations2.ts(128,33): error TS2345: Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
-  Type 'IPromise<string>' is not assignable to type 'IPromise<number>'.
-    Type 'string' is not assignable to type 'number'.
+tests/cases/compiler/promisePermutations2.ts(125,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '<T>(x: T, cb: <U>(a: U) => U) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+tests/cases/compiler/promisePermutations2.ts(128,33): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
+      Type 'IPromise<string>' is not assignable to type 'IPromise<number>'.
+        Type 'string' is not assignable to type 'number'.
 tests/cases/compiler/promisePermutations2.ts(131,19): error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
 tests/cases/compiler/promisePermutations2.ts(132,19): error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => Promise<T>' is not assignable to parameter of type '(value: number) => Promise<any>'.
 tests/cases/compiler/promisePermutations2.ts(133,19): error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => Promise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
 tests/cases/compiler/promisePermutations2.ts(136,33): error TS2345: Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
   Type 'IPromise<string>' is not assignable to type 'IPromise<number>'.
-tests/cases/compiler/promisePermutations2.ts(143,35): error TS2345: Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
+tests/cases/compiler/promisePermutations2.ts(143,35): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
 tests/cases/compiler/promisePermutations2.ts(151,36): error TS2345: Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => Promise<number>'.
   Property 'catch' is missing in type 'IPromise<string>' but required in type 'Promise<number>'.
-tests/cases/compiler/promisePermutations2.ts(155,21): error TS2345: Argument of type '{ (x: number): IPromise<number>; (x: string): IPromise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
-  Type 'IPromise<number>' is not assignable to type 'IPromise<string>'.
-    Type 'number' is not assignable to type 'string'.
+tests/cases/compiler/promisePermutations2.ts(155,21): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '{ (x: number): IPromise<number>; (x: string): IPromise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
+      Type 'IPromise<number>' is not assignable to type 'IPromise<string>'.
+        Type 'number' is not assignable to type 'string'.
 tests/cases/compiler/promisePermutations2.ts(157,21): error TS2345: Argument of type '{ (x: number): IPromise<number>; (x: string): IPromise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
   Type 'IPromise<number>' is not assignable to type 'IPromise<string>'.
 tests/cases/compiler/promisePermutations2.ts(158,21): error TS2345: Argument of type '{ (x: number): Promise<number>; (x: string): Promise<string>; }' is not assignable to parameter of type '(value: number) => Promise<string>'.
@@ -148,9 +172,12 @@ tests/cases/compiler/promisePermutations2.ts(159,21): error TS2345: Argument of
     var sPromise: (x: any) => Promise<string>;
     var r4a = r4.then(testFunction4, testFunction4, testFunction4); // error
                       ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number, y?: string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-!!! error TS2345:   Types of parameters 'x' and 'value' are incompatible.
-!!! error TS2345:     Type 'string' is not assignable to type 'number'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number, y?: string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! error TS2769:       Types of parameters 'x' and 'value' are incompatible.
+!!! error TS2769:         Type 'string' is not assignable to type 'number'.
+!!! related TS2771 tests/cases/compiler/promisePermutations2.ts:12:5: The last overload is declared here.
     var r4b = r4.then(sIPromise, testFunction4, testFunction4).then(sIPromise, testFunction4, testFunction4); // ok
     var s4: Promise<string>;
     var s4a = s4.then(testFunction4, testFunction4, testFunction4); // error
@@ -173,7 +200,10 @@ tests/cases/compiler/promisePermutations2.ts(159,21): error TS2345: Argument of
     var r5: IPromise<string>;
     var r5a = r5.then(testFunction5, testFunction5, testFunction5); // error
                       ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number, cb: (a: string) => string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number, cb: (a: string) => string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations2.ts:12:5: The last overload is declared here.
     var r5b = r5.then(sIPromise, sIPromise, sIPromise).then(sIPromise, sIPromise, sIPromise); // ok
     var s5: Promise<string>;
     var s5a = s5.then(testFunction5, testFunction5, testFunction5); // error
@@ -190,7 +220,10 @@ tests/cases/compiler/promisePermutations2.ts(159,21): error TS2345: Argument of
     var r6: IPromise<string>;
     var r6a = r6.then(testFunction6, testFunction6, testFunction6); // error
                       ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number, cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number, cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations2.ts:12:5: The last overload is declared here.
     var r6b = r6.then(sIPromise, sIPromise, sIPromise).then(sIPromise, sIPromise, sIPromise); // ok
     var s6: Promise<string>;
     var s6a = s6.then(testFunction6, testFunction6, testFunction6); // error
@@ -207,24 +240,36 @@ tests/cases/compiler/promisePermutations2.ts(159,21): error TS2345: Argument of
     var r7: IPromise<string>;
     var r7a = r7.then(testFunction7, testFunction7, testFunction7); // error
                       ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-!!! error TS2345:   Types of parameters 'cb' and 'value' are incompatible.
-!!! error TS2345:     Type 'string' is not assignable to type '<T>(a: T) => T'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! error TS2769:       Types of parameters 'cb' and 'value' are incompatible.
+!!! error TS2769:         Type 'string' is not assignable to type '<T>(a: T) => T'.
+!!! related TS2771 tests/cases/compiler/promisePermutations2.ts:12:5: The last overload is declared here.
     var r7b = r7.then(sIPromise, sIPromise, sIPromise).then(sIPromise, sIPromise, sIPromise); // ok
     var s7: Promise<string>;
     var s7a = r7.then(testFunction7, testFunction7, testFunction7); // error
                       ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations2.ts:12:5: The last overload is declared here.
     var s7b = r7.then(testFunction7P, testFunction7P, testFunction7P); // error
                       ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
-!!! error TS2345:   Types of parameters 'cb' and 'value' are incompatible.
-!!! error TS2345:     Type 'string' is not assignable to type '<T>(a: T) => T'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
+!!! error TS2769:       Types of parameters 'cb' and 'value' are incompatible.
+!!! error TS2769:         Type 'string' is not assignable to type '<T>(a: T) => T'.
+!!! related TS2771 tests/cases/compiler/promisePermutations2.ts:12:5: The last overload is declared here.
     var s7c = r7.then(testFunction7P, testFunction7, testFunction7); // error
                       ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-!!! error TS2345:   Types of parameters 'cb' and 'value' are incompatible.
-!!! error TS2345:     Type 'string' is not assignable to type '<T>(a: T) => T'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! error TS2769:       Types of parameters 'cb' and 'value' are incompatible.
+!!! error TS2769:         Type 'string' is not assignable to type '<T>(a: T) => T'.
+!!! related TS2771 tests/cases/compiler/promisePermutations2.ts:12:5: The last overload is declared here.
     var s7d = r7.then(sPromise, sPromise, sPromise).then(sPromise, sPromise, sPromise); // ok?
     
     var r8: IPromise<number>;
@@ -232,7 +277,10 @@ tests/cases/compiler/promisePermutations2.ts(159,21): error TS2345: Argument of
     var nPromise: (x: any) => Promise<number>;
     var r8a = r8.then(testFunction8, testFunction8, testFunction8); // error
                       ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '<T>(x: T, cb: (a: T) => T) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations2.ts:12:5: The last overload is declared here.
     var r8b = r8.then(nIPromise, nIPromise, nIPromise).then(nIPromise, nIPromise, nIPromise); // ok
     var s8: Promise<number>;
     var s8a = s8.then(testFunction8, testFunction8, testFunction8); // error
@@ -249,14 +297,20 @@ tests/cases/compiler/promisePermutations2.ts(159,21): error TS2345: Argument of
     var r9: IPromise<number>;
     var r9a = r9.then(testFunction9, testFunction9, testFunction9); // error
                       ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '<T>(x: T, cb: <U>(a: U) => U) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations2.ts:12:5: The last overload is declared here.
     var r9b = r9.then(sIPromise, sIPromise, sIPromise); // ok
     var r9c = r9.then(nIPromise, nIPromise, nIPromise); // ok
     var r9d = r9.then(testFunction, sIPromise, nIPromise); // error
                                     ~~~~~~~~~
-!!! error TS2345: Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
-!!! error TS2345:   Type 'IPromise<string>' is not assignable to type 'IPromise<number>'.
-!!! error TS2345:     Type 'string' is not assignable to type 'number'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
+!!! error TS2769:       Type 'IPromise<string>' is not assignable to type 'IPromise<number>'.
+!!! error TS2769:         Type 'string' is not assignable to type 'number'.
+!!! related TS2771 tests/cases/compiler/promisePermutations2.ts:12:5: The last overload is declared here.
     var r9e = r9.then(testFunction, nIPromise, sIPromise).then(sIPromise, sIPromise, sIPromise); // ok
     var s9: Promise<number>;
     var s9a = s9.then(testFunction9, testFunction9, testFunction9); // error
@@ -282,7 +336,10 @@ tests/cases/compiler/promisePermutations2.ts(159,21): error TS2345: Argument of
     var r10c = r10.then(nIPromise, nIPromise, nIPromise); // ok
     var r10d = r10.then(testFunction, sIPromise, nIPromise); // error
                                       ~~~~~~~~~
-!!! error TS2345: Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations2.ts:12:5: The last overload is declared here.
     var r10e = r10.then(testFunction, nIPromise, sIPromise).then(sIPromise, sIPromise, sIPromise); // ok
     var s10 = testFunction10P(x => x);
     var s10a = s10.then(testFunction10, testFunction10, testFunction10); // ok
@@ -300,9 +357,12 @@ tests/cases/compiler/promisePermutations2.ts(159,21): error TS2345: Argument of
     var r11: IPromise<number>;
     var r11a = r11.then(testFunction11, testFunction11, testFunction11); // error
                         ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '{ (x: number): IPromise<number>; (x: string): IPromise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
-!!! error TS2345:   Type 'IPromise<number>' is not assignable to type 'IPromise<string>'.
-!!! error TS2345:     Type 'number' is not assignable to type 'string'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '{ (x: number): IPromise<number>; (x: string): IPromise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
+!!! error TS2769:       Type 'IPromise<number>' is not assignable to type 'IPromise<string>'.
+!!! error TS2769:         Type 'number' is not assignable to type 'string'.
+!!! related TS2771 tests/cases/compiler/promisePermutations2.ts:12:5: The last overload is declared here.
     var s11: Promise<number>;
     var s11a = s11.then(testFunction11, testFunction11, testFunction11); // ok
                         ~~~~~~~~~~~~~~

tests/baselines/reference/promisePermutations3.errors.txt

@@ -1,29 +1,49 @@
 tests/cases/compiler/promisePermutations3.ts(68,69): error TS2345: Argument of type '(x: number) => IPromise<number>' is not assignable to parameter of type '(value: IPromise<number>) => IPromise<number>'.
   Types of parameters 'x' and 'value' are incompatible.
     Type 'IPromise<number>' is not assignable to type 'number'.
-tests/cases/compiler/promisePermutations3.ts(73,70): error TS2345: Argument of type '(x: number) => IPromise<number>' is not assignable to parameter of type '(value: IPromise<number>) => IPromise<number>'.
-  Types of parameters 'x' and 'value' are incompatible.
-    Type 'IPromise<number>' is not assignable to type 'number'.
+tests/cases/compiler/promisePermutations3.ts(73,70): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number) => IPromise<number>' is not assignable to parameter of type '(value: IPromise<number>) => IPromise<number>'.
+      Types of parameters 'x' and 'value' are incompatible.
+        Type 'IPromise<number>' is not assignable to type 'number'.
 tests/cases/compiler/promisePermutations3.ts(78,19): error TS2345: Argument of type '(x: number, y?: string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
   Types of parameters 'x' and 'value' are incompatible.
     Type 'string' is not assignable to type 'number'.
-tests/cases/compiler/promisePermutations3.ts(81,19): error TS2345: Argument of type '(x: number, y?: string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-  Types of parameters 'x' and 'value' are incompatible.
-    Type 'string' is not assignable to type 'number'.
-tests/cases/compiler/promisePermutations3.ts(82,19): error TS2345: Argument of type '(x: number, y?: string) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
-  Types of parameters 'x' and 'value' are incompatible.
-    Type 'string' is not assignable to type 'number'.
-tests/cases/compiler/promisePermutations3.ts(83,19): error TS2345: Argument of type '(x: number, y?: string) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-  Types of parameters 'x' and 'value' are incompatible.
-    Type 'string' is not assignable to type 'number'.
+tests/cases/compiler/promisePermutations3.ts(81,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number, y?: string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+      Types of parameters 'x' and 'value' are incompatible.
+        Type 'string' is not assignable to type 'number'.
+tests/cases/compiler/promisePermutations3.ts(82,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number, y?: string) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
+      Types of parameters 'x' and 'value' are incompatible.
+        Type 'string' is not assignable to type 'number'.
+tests/cases/compiler/promisePermutations3.ts(83,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number, y?: string) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+      Types of parameters 'x' and 'value' are incompatible.
+        Type 'string' is not assignable to type 'number'.
 tests/cases/compiler/promisePermutations3.ts(87,19): error TS2345: Argument of type '(x: number, cb: (a: string) => string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-tests/cases/compiler/promisePermutations3.ts(90,19): error TS2345: Argument of type '(x: number, cb: (a: string) => string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-tests/cases/compiler/promisePermutations3.ts(91,19): error TS2345: Argument of type '(x: number, cb: (a: string) => string) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
-tests/cases/compiler/promisePermutations3.ts(92,19): error TS2345: Argument of type '(x: number, cb: (a: string) => string) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+tests/cases/compiler/promisePermutations3.ts(90,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number, cb: (a: string) => string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+tests/cases/compiler/promisePermutations3.ts(91,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number, cb: (a: string) => string) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
+tests/cases/compiler/promisePermutations3.ts(92,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number, cb: (a: string) => string) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
 tests/cases/compiler/promisePermutations3.ts(96,19): error TS2345: Argument of type '(x: number, cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-tests/cases/compiler/promisePermutations3.ts(99,19): error TS2345: Argument of type '(x: number, cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-tests/cases/compiler/promisePermutations3.ts(100,19): error TS2345: Argument of type '(x: number, cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
-tests/cases/compiler/promisePermutations3.ts(101,19): error TS2345: Argument of type '(x: number, cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+tests/cases/compiler/promisePermutations3.ts(99,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number, cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+tests/cases/compiler/promisePermutations3.ts(100,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number, cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
+tests/cases/compiler/promisePermutations3.ts(101,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: number, cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
 tests/cases/compiler/promisePermutations3.ts(105,19): error TS2345: Argument of type '(cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
   Types of parameters 'cb' and 'value' are incompatible.
     Type 'string' is not assignable to type '<T>(a: T) => T'.
@@ -35,36 +55,58 @@ tests/cases/compiler/promisePermutations3.ts(110,19): error TS2345: Argument of
   Types of parameters 'cb' and 'value' are incompatible.
     Type 'string' is not assignable to type '<T>(a: T) => T'.
 tests/cases/compiler/promisePermutations3.ts(116,19): error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
-tests/cases/compiler/promisePermutations3.ts(119,19): error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
-tests/cases/compiler/promisePermutations3.ts(120,19): error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => Promise<T>' is not assignable to parameter of type '(value: number) => Promise<any>'.
-tests/cases/compiler/promisePermutations3.ts(121,19): error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => Promise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+tests/cases/compiler/promisePermutations3.ts(119,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '<T>(x: T, cb: (a: T) => T) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+tests/cases/compiler/promisePermutations3.ts(120,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '<T>(x: T, cb: (a: T) => T) => Promise<T>' is not assignable to parameter of type '(value: number) => Promise<any>'.
+tests/cases/compiler/promisePermutations3.ts(121,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '<T>(x: T, cb: (a: T) => T) => Promise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
 tests/cases/compiler/promisePermutations3.ts(125,19): error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
 tests/cases/compiler/promisePermutations3.ts(128,33): error TS2345: Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
   Type 'IPromise<string>' is not assignable to type 'IPromise<number>'.
     Type 'string' is not assignable to type 'number'.
-tests/cases/compiler/promisePermutations3.ts(131,19): error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
-tests/cases/compiler/promisePermutations3.ts(132,19): error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => Promise<T>' is not assignable to parameter of type '(value: number) => Promise<any>'.
-tests/cases/compiler/promisePermutations3.ts(133,19): error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => Promise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
-tests/cases/compiler/promisePermutations3.ts(136,33): error TS2345: Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
-  Type 'IPromise<string>' is not assignable to type 'IPromise<number>'.
+tests/cases/compiler/promisePermutations3.ts(131,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '<T>(x: T, cb: <U>(a: U) => U) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+tests/cases/compiler/promisePermutations3.ts(132,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '<T>(x: T, cb: <U>(a: U) => U) => Promise<T>' is not assignable to parameter of type '(value: number) => Promise<any>'.
+tests/cases/compiler/promisePermutations3.ts(133,19): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '<T>(x: T, cb: <U>(a: U) => U) => Promise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+tests/cases/compiler/promisePermutations3.ts(136,33): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
+      Type 'IPromise<string>' is not assignable to type 'IPromise<number>'.
 tests/cases/compiler/promisePermutations3.ts(143,35): error TS2345: Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
-tests/cases/compiler/promisePermutations3.ts(151,36): error TS2345: Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => Promise<number>'.
-  Property 'catch' is missing in type 'IPromise<string>' but required in type 'Promise<number>'.
+tests/cases/compiler/promisePermutations3.ts(151,36): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => Promise<number>'.
+      Property 'catch' is missing in type 'IPromise<string>' but required in type 'Promise<number>'.
 tests/cases/compiler/promisePermutations3.ts(155,21): error TS2345: Argument of type '{ (x: number): IPromise<number>; (x: string): IPromise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
   Type 'IPromise<number>' is not assignable to type 'IPromise<string>'.
     Type 'number' is not assignable to type 'string'.
-tests/cases/compiler/promisePermutations3.ts(157,21): error TS2345: Argument of type '{ (x: number): IPromise<number>; (x: string): IPromise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
-  Type 'IPromise<number>' is not assignable to type 'IPromise<string>'.
-tests/cases/compiler/promisePermutations3.ts(158,21): error TS2345: Argument of type '{ (x: number): Promise<number>; (x: string): Promise<string>; }' is not assignable to parameter of type '(value: number) => Promise<string>'.
-  Type 'Promise<number>' is not assignable to type 'Promise<string>'.
-    Type 'number' is not assignable to type 'string'.
-tests/cases/compiler/promisePermutations3.ts(159,21): error TS2345: Argument of type '{ (x: number): Promise<number>; (x: string): Promise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
-  Type 'Promise<number>' is not assignable to type 'IPromise<string>'.
-    Types of property 'then' are incompatible.
-      Type '{ <TResult1 = number, TResult2 = never>(onfulfilled?: (value: number) => TResult1 | PromiseLike<TResult1>, onrejected?: (reason: any) => TResult2 | PromiseLike<TResult2>): Promise<TResult1 | TResult2>; <U>(success?: (value: number) => Promise<U>, error?: (error: any) => Promise<U>, progress?: (progress: any) => void): Promise<U>; <U>(success?: (value: number) => Promise<U>, error?: (error: any) => U, progress?: (progress: any) => void): Promise<U>; <U>(success?: (value: number) => U, error?: (error: any) => Promise<U>, progress?: (progress: any) => void): Promise<U>; <U>(success?: (value: number) => U, error?: (error: any) => U, progress?: (progress: any) => void): Promise<U>; }' is not assignable to type '<U>(success?: (value: string) => U, error?: (error: any) => U, progress?: (progress: any) => void) => IPromise<U>'.
-        Types of parameters 'onfulfilled' and 'success' are incompatible.
-          Types of parameters 'value' and 'value' are incompatible.
-            Type 'number' is not assignable to type 'string'.
+tests/cases/compiler/promisePermutations3.ts(157,21): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '{ (x: number): IPromise<number>; (x: string): IPromise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
+      Type 'IPromise<number>' is not assignable to type 'IPromise<string>'.
+tests/cases/compiler/promisePermutations3.ts(158,21): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '{ (x: number): Promise<number>; (x: string): Promise<string>; }' is not assignable to parameter of type '(value: number) => Promise<string>'.
+      Type 'Promise<number>' is not assignable to type 'Promise<string>'.
+        Type 'number' is not assignable to type 'string'.
+tests/cases/compiler/promisePermutations3.ts(159,21): error TS2769: No overload matches this call.
+  The last overload gave the following error.
+    Argument of type '{ (x: number): Promise<number>; (x: string): Promise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
+      Type 'Promise<number>' is not assignable to type 'IPromise<string>'.
+        Types of property 'then' are incompatible.
+          Type '{ <TResult1 = number, TResult2 = never>(onfulfilled?: (value: number) => TResult1 | PromiseLike<TResult1>, onrejected?: (reason: any) => TResult2 | PromiseLike<TResult2>): Promise<TResult1 | TResult2>; <U>(success?: (value: number) => Promise<U>, error?: (error: any) => Promise<U>, progress?: (progress: any) => void): Promise<U>; <U>(success?: (value: number) => Promise<U>, error?: (error: any) => U, progress?: (progress: any) => void): Promise<U>; <U>(success?: (value: number) => U, error?: (error: any) => Promise<U>, progress?: (progress: any) => void): Promise<U>; <U>(success?: (value: number) => U, error?: (error: any) => U, progress?: (progress: any) => void): Promise<U>; }' is not assignable to type '<U>(success?: (value: string) => U, error?: (error: any) => U, progress?: (progress: any) => void) => IPromise<U>'.
+            Types of parameters 'onfulfilled' and 'success' are incompatible.
+              Types of parameters 'value' and 'value' are incompatible.
+                Type 'number' is not assignable to type 'string'.
 tests/cases/compiler/promisePermutations3.ts(165,21): error TS2345: Argument of type '{ <T>(x: T): IPromise<T>; <T>(x: T, y: T): Promise<T>; }' is not assignable to parameter of type '(value: (x: any) => any) => Promise<unknown>'.
   Property 'catch' is missing in type 'IPromise<any>' but required in type 'Promise<unknown>'.
 
@@ -148,9 +190,12 @@ tests/cases/compiler/promisePermutations3.ts(165,21): error TS2345: Argument of
     var s3c = s3.then(testFunction3P, testFunction3, testFunction3);
     var s3d = s3.then(testFunction3P, testFunction3, testFunction3).then(testFunction3, testFunction3, testFunction3);
                                                                          ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number) => IPromise<number>' is not assignable to parameter of type '(value: IPromise<number>) => IPromise<number>'.
-!!! error TS2345:   Types of parameters 'x' and 'value' are incompatible.
-!!! error TS2345:     Type 'IPromise<number>' is not assignable to type 'number'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number) => IPromise<number>' is not assignable to parameter of type '(value: IPromise<number>) => IPromise<number>'.
+!!! error TS2769:       Types of parameters 'x' and 'value' are incompatible.
+!!! error TS2769:         Type 'IPromise<number>' is not assignable to type 'number'.
+!!! related TS2771 tests/cases/compiler/promisePermutations3.ts:7:5: The last overload is declared here.
     
     var r4: IPromise<string>;
     var sIPromise: (x: any) => IPromise<string>;
@@ -164,19 +209,28 @@ tests/cases/compiler/promisePermutations3.ts(165,21): error TS2345: Argument of
     var s4: Promise<string>;
     var s4a = s4.then(testFunction4, testFunction4, testFunction4); // error
                       ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number, y?: string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-!!! error TS2345:   Types of parameters 'x' and 'value' are incompatible.
-!!! error TS2345:     Type 'string' is not assignable to type 'number'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number, y?: string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! error TS2769:       Types of parameters 'x' and 'value' are incompatible.
+!!! error TS2769:         Type 'string' is not assignable to type 'number'.
+!!! related TS2771 tests/cases/compiler/promisePermutations3.ts:7:5: The last overload is declared here.
     var s4b = s4.then(testFunction4P, testFunction4P, testFunction4P); // error 
                       ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number, y?: string) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
-!!! error TS2345:   Types of parameters 'x' and 'value' are incompatible.
-!!! error TS2345:     Type 'string' is not assignable to type 'number'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number, y?: string) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
+!!! error TS2769:       Types of parameters 'x' and 'value' are incompatible.
+!!! error TS2769:         Type 'string' is not assignable to type 'number'.
+!!! related TS2771 tests/cases/compiler/promisePermutations3.ts:7:5: The last overload is declared here.
     var s4c = s4.then(testFunction4P, testFunction4, testFunction4); // error
                       ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number, y?: string) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
-!!! error TS2345:   Types of parameters 'x' and 'value' are incompatible.
-!!! error TS2345:     Type 'string' is not assignable to type 'number'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number, y?: string) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! error TS2769:       Types of parameters 'x' and 'value' are incompatible.
+!!! error TS2769:         Type 'string' is not assignable to type 'number'.
+!!! related TS2771 tests/cases/compiler/promisePermutations3.ts:7:5: The last overload is declared here.
     var s4d = s4.then(sIPromise, testFunction4P, testFunction4).then(sIPromise, testFunction4P, testFunction4);
     
     var r5: IPromise<string>;
@@ -187,13 +241,22 @@ tests/cases/compiler/promisePermutations3.ts(165,21): error TS2345: Argument of
     var s5: Promise<string>;
     var s5a = s5.then(testFunction5, testFunction5, testFunction5); // error
                       ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number, cb: (a: string) => string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number, cb: (a: string) => string) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations3.ts:7:5: The last overload is declared here.
     var s5b = s5.then(testFunction5P, testFunction5P, testFunction5P); // error
                       ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number, cb: (a: string) => string) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number, cb: (a: string) => string) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations3.ts:7:5: The last overload is declared here.
     var s5c = s5.then(testFunction5P, testFunction5, testFunction5); // error
                       ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number, cb: (a: string) => string) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number, cb: (a: string) => string) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations3.ts:7:5: The last overload is declared here.
     var s5d = s5.then(sPromise, sPromise, sPromise).then(sIPromise, sIPromise, sIPromise); // ok
     
     var r6: IPromise<string>;
@@ -204,13 +267,22 @@ tests/cases/compiler/promisePermutations3.ts(165,21): error TS2345: Argument of
     var s6: Promise<string>;
     var s6a = s6.then(testFunction6, testFunction6, testFunction6); // error
                       ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number, cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number, cb: <T>(a: T) => T) => IPromise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations3.ts:7:5: The last overload is declared here.
     var s6b = s6.then(testFunction6P, testFunction6P, testFunction6P); // error
                       ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number, cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number, cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => Promise<string>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations3.ts:7:5: The last overload is declared here.
     var s6c = s6.then(testFunction6P, testFunction6, testFunction6); // error
                       ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(x: number, cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: number, cb: <T>(a: T) => T) => Promise<string>' is not assignable to parameter of type '(value: string) => IPromise<string>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations3.ts:7:5: The last overload is declared here.
     var s6d = s6.then(sPromise, sPromise, sPromise).then(sIPromise, sIPromise, sIPromise); // ok
     
     var r7: IPromise<string>;
@@ -246,13 +318,22 @@ tests/cases/compiler/promisePermutations3.ts(165,21): error TS2345: Argument of
     var s8: Promise<number>;
     var s8a = s8.then(testFunction8, testFunction8, testFunction8); // error
                       ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '<T>(x: T, cb: (a: T) => T) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations3.ts:7:5: The last overload is declared here.
     var s8b = s8.then(testFunction8P, testFunction8P, testFunction8P); // error
                       ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => Promise<T>' is not assignable to parameter of type '(value: number) => Promise<any>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '<T>(x: T, cb: (a: T) => T) => Promise<T>' is not assignable to parameter of type '(value: number) => Promise<any>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations3.ts:7:5: The last overload is declared here.
     var s8c = s8.then(testFunction8P, testFunction8, testFunction8); // error
                       ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => Promise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '<T>(x: T, cb: (a: T) => T) => Promise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations3.ts:7:5: The last overload is declared here.
     var s8d = s8.then(nIPromise, nIPromise, nIPromise).then(nIPromise, nIPromise, nIPromise); // ok
     
     var r9: IPromise<number>;
@@ -270,19 +351,31 @@ tests/cases/compiler/promisePermutations3.ts(165,21): error TS2345: Argument of
     var s9: Promise<number>;
     var s9a = s9.then(testFunction9, testFunction9, testFunction9); // error
                       ~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '<T>(x: T, cb: <U>(a: U) => U) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations3.ts:7:5: The last overload is declared here.
     var s9b = s9.then(testFunction9P, testFunction9P, testFunction9P); // error
                       ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => Promise<T>' is not assignable to parameter of type '(value: number) => Promise<any>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '<T>(x: T, cb: <U>(a: U) => U) => Promise<T>' is not assignable to parameter of type '(value: number) => Promise<any>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations3.ts:7:5: The last overload is declared here.
     var s9c = s9.then(testFunction9P, testFunction9, testFunction9); // error
                       ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => Promise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '<T>(x: T, cb: <U>(a: U) => U) => Promise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations3.ts:7:5: The last overload is declared here.
     var s9d = s9.then(sPromise, sPromise, sPromise); // ok
     var s9e = s9.then(nPromise, nPromise, nPromise); // ok
     var s9f = s9.then(testFunction, sIPromise, nIPromise); // error
                                     ~~~~~~~~~
-!!! error TS2345: Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
-!!! error TS2345:   Type 'IPromise<string>' is not assignable to type 'IPromise<number>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => IPromise<number>'.
+!!! error TS2769:       Type 'IPromise<string>' is not assignable to type 'IPromise<number>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations3.ts:7:5: The last overload is declared here.
     var s9g = s9.then(testFunction, nIPromise, sIPromise).then(sIPromise, sIPromise, sIPromise); // ok
     
     var r10 = testFunction10(x => x);
@@ -301,9 +394,12 @@ tests/cases/compiler/promisePermutations3.ts(165,21): error TS2345: Argument of
     var s10e = s10.then(nIPromise, nPromise, nIPromise); // ok
     var s10f = s10.then(testFunctionP, sIPromise, nIPromise); // error
                                        ~~~~~~~~~
-!!! error TS2345: Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => Promise<number>'.
-!!! error TS2345:   Property 'catch' is missing in type 'IPromise<string>' but required in type 'Promise<number>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '(x: any) => IPromise<string>' is not assignable to parameter of type '(error: any) => Promise<number>'.
+!!! error TS2769:       Property 'catch' is missing in type 'IPromise<string>' but required in type 'Promise<number>'.
 !!! related TS2728 /.ts/lib.es5.d.ts:1413:5: 'catch' is declared here.
+!!! related TS2771 tests/cases/compiler/promisePermutations3.ts:7:5: The last overload is declared here.
     var s10g = s10.then(testFunctionP, nIPromise, sIPromise).then(sPromise, sIPromise, sIPromise); // ok
     
     var r11: IPromise<number>;
@@ -315,22 +411,31 @@ tests/cases/compiler/promisePermutations3.ts(165,21): error TS2345: Argument of
     var s11: Promise<number>;
     var s11a = s11.then(testFunction11, testFunction11, testFunction11); // ok
                         ~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '{ (x: number): IPromise<number>; (x: string): IPromise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
-!!! error TS2345:   Type 'IPromise<number>' is not assignable to type 'IPromise<string>'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '{ (x: number): IPromise<number>; (x: string): IPromise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
+!!! error TS2769:       Type 'IPromise<number>' is not assignable to type 'IPromise<string>'.
+!!! related TS2771 tests/cases/compiler/promisePermutations3.ts:7:5: The last overload is declared here.
     var s11b = s11.then(testFunction11P, testFunction11P, testFunction11P); // error
                         ~~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '{ (x: number): Promise<number>; (x: string): Promise<string>; }' is not assignable to parameter of type '(value: number) => Promise<string>'.
-!!! error TS2345:   Type 'Promise<number>' is not assignable to type 'Promise<string>'.
-!!! error TS2345:     Type 'number' is not assignable to type 'string'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '{ (x: number): Promise<number>; (x: string): Promise<string>; }' is not assignable to parameter of type '(value: number) => Promise<string>'.
+!!! error TS2769:       Type 'Promise<number>' is not assignable to type 'Promise<string>'.
+!!! error TS2769:         Type 'number' is not assignable to type 'string'.
+!!! related TS2771 tests/cases/compiler/promisePermutations3.ts:7:5: The last overload is declared here.
     var s11c = s11.then(testFunction11P, testFunction11, testFunction11); // error
                         ~~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '{ (x: number): Promise<number>; (x: string): Promise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
-!!! error TS2345:   Type 'Promise<number>' is not assignable to type 'IPromise<string>'.
-!!! error TS2345:     Types of property 'then' are incompatible.
-!!! error TS2345:       Type '{ <TResult1 = number, TResult2 = never>(onfulfilled?: (value: number) => TResult1 | PromiseLike<TResult1>, onrejected?: (reason: any) => TResult2 | PromiseLike<TResult2>): Promise<TResult1 | TResult2>; <U>(success?: (value: number) => Promise<U>, error?: (error: any) => Promise<U>, progress?: (progress: any) => void): Promise<U>; <U>(success?: (value: number) => Promise<U>, error?: (error: any) => U, progress?: (progress: any) => void): Promise<U>; <U>(success?: (value: number) => U, error?: (error: any) => Promise<U>, progress?: (progress: any) => void): Promise<U>; <U>(success?: (value: number) => U, error?: (error: any) => U, progress?: (progress: any) => void): Promise<U>; }' is not assignable to type '<U>(success?: (value: string) => U, error?: (error: any) => U, progress?: (progress: any) => void) => IPromise<U>'.
-!!! error TS2345:         Types of parameters 'onfulfilled' and 'success' are incompatible.
-!!! error TS2345:           Types of parameters 'value' and 'value' are incompatible.
-!!! error TS2345:             Type 'number' is not assignable to type 'string'.
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   The last overload gave the following error.
+!!! error TS2769:     Argument of type '{ (x: number): Promise<number>; (x: string): Promise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
+!!! error TS2769:       Type 'Promise<number>' is not assignable to type 'IPromise<string>'.
+!!! error TS2769:         Types of property 'then' are incompatible.
+!!! error TS2769:           Type '{ <TResult1 = number, TResult2 = never>(onfulfilled?: (value: number) => TResult1 | PromiseLike<TResult1>, onrejected?: (reason: any) => TResult2 | PromiseLike<TResult2>): Promise<TResult1 | TResult2>; <U>(success?: (value: number) => Promise<U>, error?: (error: any) => Promise<U>, progress?: (progress: any) => void): Promise<U>; <U>(success?: (value: number) => Promise<U>, error?: (error: any) => U, progress?: (progress: any) => void): Promise<U>; <U>(success?: (value: number) => U, error?: (error: any) => Promise<U>, progress?: (progress: any) => void): Promise<U>; <U>(success?: (value: number) => U, error?: (error: any) => U, progress?: (progress: any) => void): Promise<U>; }' is not assignable to type '<U>(success?: (value: string) => U, error?: (error: any) => U, progress?: (progress: any) => void) => IPromise<U>'.
+!!! error TS2769:             Types of parameters 'onfulfilled' and 'success' are incompatible.
+!!! error TS2769:               Types of parameters 'value' and 'value' are incompatible.
+!!! error TS2769:                 Type 'number' is not assignable to type 'string'.
+!!! related TS2771 tests/cases/compiler/promisePermutations3.ts:7:5: The last overload is declared here.
     
     var r12 = testFunction12(x => x);
     var r12a = r12.then(testFunction12, testFunction12, testFunction12); // ok

tests/baselines/reference/promiseTypeInference.errors.txt

@@ -1,10 +1,14 @@
-tests/cases/compiler/promiseTypeInference.ts(10,39): error TS2322: Type 'IPromise<number>' is not assignable to type 'number | PromiseLike<number>'.
-  Type 'IPromise<number>' is not assignable to type 'PromiseLike<number>'.
-    Types of property 'then' are incompatible.
-      Type '<U>(success?: (value: number) => IPromise<U>) => IPromise<U>' is not assignable to type '<TResult1 = number, TResult2 = never>(onfulfilled?: (value: number) => TResult1 | PromiseLike<TResult1>, onrejected?: (reason: any) => TResult2 | PromiseLike<TResult2>) => PromiseLike<TResult1 | TResult2>'.
-        Types of parameters 'success' and 'onfulfilled' are incompatible.
-          Type 'TResult1 | PromiseLike<TResult1>' is not assignable to type 'IPromise<TResult1 | TResult2>'.
-            Type 'TResult1' is not assignable to type 'IPromise<TResult1 | TResult2>'.
+tests/cases/compiler/promiseTypeInference.ts(10,11): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(success?: (value: string) => Promise<unknown>): Promise<unknown>', gave the following error.
+    Property 'catch' is missing in type 'IPromise<number>' but required in type 'Promise<unknown>'.
+  Overload 2 of 2, '(onfulfilled?: (value: string) => number | PromiseLike<number>, onrejected?: (reason: any) => PromiseLike<never>): Promise<number>', gave the following error.
+    Type 'IPromise<number>' is not assignable to type 'number | PromiseLike<number>'.
+      Type 'IPromise<number>' is not assignable to type 'PromiseLike<number>'.
+        Types of property 'then' are incompatible.
+          Type '<U>(success?: (value: number) => IPromise<U>) => IPromise<U>' is not assignable to type '<TResult1 = number, TResult2 = never>(onfulfilled?: (value: number) => TResult1 | PromiseLike<TResult1>, onrejected?: (reason: any) => TResult2 | PromiseLike<TResult2>) => PromiseLike<TResult1 | TResult2>'.
+            Types of parameters 'success' and 'onfulfilled' are incompatible.
+              Type 'TResult1 | PromiseLike<TResult1>' is not assignable to type 'IPromise<TResult1 | TResult2>'.
+                Type 'TResult1' is not assignable to type 'IPromise<TResult1 | TResult2>'.
 
 
 ==== tests/cases/compiler/promiseTypeInference.ts (1 errors) ====
@@ -18,13 +22,19 @@ tests/cases/compiler/promiseTypeInference.ts(10,39): error TS2322: Type 'IPromis
     declare function convert(s: string): IPromise<number>;
     
     var $$x = load("something").then(s => convert(s));
-                                          ~~~~~~~~~~
-!!! error TS2322: Type 'IPromise<number>' is not assignable to type 'number | PromiseLike<number>'.
-!!! error TS2322:   Type 'IPromise<number>' is not assignable to type 'PromiseLike<number>'.
-!!! error TS2322:     Types of property 'then' are incompatible.
-!!! error TS2322:       Type '<U>(success?: (value: number) => IPromise<U>) => IPromise<U>' is not assignable to type '<TResult1 = number, TResult2 = never>(onfulfilled?: (value: number) => TResult1 | PromiseLike<TResult1>, onrejected?: (reason: any) => TResult2 | PromiseLike<TResult2>) => PromiseLike<TResult1 | TResult2>'.
-!!! error TS2322:         Types of parameters 'success' and 'onfulfilled' are incompatible.
-!!! error TS2322:           Type 'TResult1 | PromiseLike<TResult1>' is not assignable to type 'IPromise<TResult1 | TResult2>'.
-!!! error TS2322:             Type 'TResult1' is not assignable to type 'IPromise<TResult1 | TResult2>'.
+              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(success?: (value: string) => Promise<unknown>): Promise<unknown>', gave the following error.
+!!! error TS2769:     Property 'catch' is missing in type 'IPromise<number>' but required in type 'Promise<unknown>'.
+!!! error TS2769:   Overload 2 of 2, '(onfulfilled?: (value: string) => number | PromiseLike<number>, onrejected?: (reason: any) => PromiseLike<never>): Promise<number>', gave the following error.
+!!! error TS2769:     Type 'IPromise<number>' is not assignable to type 'number | PromiseLike<number>'.
+!!! error TS2769:       Type 'IPromise<number>' is not assignable to type 'PromiseLike<number>'.
+!!! error TS2769:         Types of property 'then' are incompatible.
+!!! error TS2769:           Type '<U>(success?: (value: number) => IPromise<U>) => IPromise<U>' is not assignable to type '<TResult1 = number, TResult2 = never>(onfulfilled?: (value: number) => TResult1 | PromiseLike<TResult1>, onrejected?: (reason: any) => TResult2 | PromiseLike<TResult2>) => PromiseLike<TResult1 | TResult2>'.
+!!! error TS2769:             Types of parameters 'success' and 'onfulfilled' are incompatible.
+!!! error TS2769:               Type 'TResult1 | PromiseLike<TResult1>' is not assignable to type 'IPromise<TResult1 | TResult2>'.
+!!! error TS2769:                 Type 'TResult1' is not assignable to type 'IPromise<TResult1 | TResult2>'.
+!!! related TS2728 /.ts/lib.es5.d.ts:1413:5: 'catch' is declared here.
+!!! related TS6502 tests/cases/compiler/promiseTypeInference.ts:2:23: The expected type comes from the return type of this signature.
 !!! related TS6502 /.ts/lib.es5.d.ts:1406:57: The expected type comes from the return type of this signature.
     

tests/baselines/reference/reactDefaultPropsInferenceSuccess.errors.txt

@@ -1,11 +1,25 @@
-tests/cases/compiler/reactDefaultPropsInferenceSuccess.tsx(27,36): error TS2322: Type '(value: string) => void' is not assignable to type '"a" | "b" | ((value: string) => boolean) | undefined'.
-  Type '(value: string) => void' is not assignable to type '(value: string) => boolean'.
-    Type 'void' is not assignable to type 'boolean'.
-tests/cases/compiler/reactDefaultPropsInferenceSuccess.tsx(43,41): error TS2322: Type '(value: string) => void' is not assignable to type '"a" | "b" | ((value: string) => boolean) | undefined'.
-  Type '(value: string) => void' is not assignable to type '(value: string) => boolean'.
-    Type 'void' is not assignable to type 'boolean'.
-tests/cases/compiler/reactDefaultPropsInferenceSuccess.tsx(64,37): error TS2322: Type '(value: string) => void' is not assignable to type '(value: string) => boolean'.
-  Type 'void' is not assignable to type 'boolean'.
+tests/cases/compiler/reactDefaultPropsInferenceSuccess.tsx(27,21): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(props: Readonly<Props>): FieldFeedback<Props>', gave the following error.
+    Type '(value: string) => void' is not assignable to type '"a" | "b" | ((value: string) => boolean) | undefined'.
+      Type '(value: string) => void' is not assignable to type '(value: string) => boolean'.
+        Type 'void' is not assignable to type 'boolean'.
+  Overload 2 of 2, '(props: Props, context?: any): FieldFeedback<Props>', gave the following error.
+    Type '(value: string) => void' is not assignable to type '"a" | "b" | ((value: string) => boolean) | undefined'.
+      Type '(value: string) => void' is not assignable to type '(value: string) => boolean'.
+tests/cases/compiler/reactDefaultPropsInferenceSuccess.tsx(43,22): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(props: Readonly<Props>): FieldFeedbackBeta<Props>', gave the following error.
+    Type '(value: string) => void' is not assignable to type '"a" | "b" | ((value: string) => boolean) | undefined'.
+      Type '(value: string) => void' is not assignable to type '(value: string) => boolean'.
+        Type 'void' is not assignable to type 'boolean'.
+  Overload 2 of 2, '(props: Props, context?: any): FieldFeedbackBeta<Props>', gave the following error.
+    Type '(value: string) => void' is not assignable to type '"a" | "b" | ((value: string) => boolean) | undefined'.
+      Type '(value: string) => void' is not assignable to type '(value: string) => boolean'.
+tests/cases/compiler/reactDefaultPropsInferenceSuccess.tsx(64,21): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(props: Readonly<MyPropsProps>): FieldFeedback2<MyPropsProps>', gave the following error.
+    Type '(value: string) => void' is not assignable to type '(value: string) => boolean'.
+      Type 'void' is not assignable to type 'boolean'.
+  Overload 2 of 2, '(props: MyPropsProps, context?: any): FieldFeedback2<MyPropsProps>', gave the following error.
+    Type '(value: string) => void' is not assignable to type '(value: string) => boolean'.
 
 
 ==== tests/cases/compiler/reactDefaultPropsInferenceSuccess.tsx (3 errors) ====
@@ -36,10 +50,16 @@ tests/cases/compiler/reactDefaultPropsInferenceSuccess.tsx(64,37): error TS2322:
     
     // Error: Void not assignable to boolean
     const Test2 = () => <FieldFeedback when={value => console.log(value)} />;
-                                       ~~~~
-!!! error TS2322: Type '(value: string) => void' is not assignable to type '"a" | "b" | ((value: string) => boolean) | undefined'.
-!!! error TS2322:   Type '(value: string) => void' is not assignable to type '(value: string) => boolean'.
-!!! error TS2322:     Type 'void' is not assignable to type 'boolean'.
+                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(props: Readonly<Props>): FieldFeedback<Props>', gave the following error.
+!!! error TS2769:     Type '(value: string) => void' is not assignable to type '"a" | "b" | ((value: string) => boolean) | undefined'.
+!!! error TS2769:       Type '(value: string) => void' is not assignable to type '(value: string) => boolean'.
+!!! error TS2769:         Type 'void' is not assignable to type 'boolean'.
+!!! error TS2769:   Overload 2 of 2, '(props: Props, context?: any): FieldFeedback<Props>', gave the following error.
+!!! error TS2769:     Type '(value: string) => void' is not assignable to type '"a" | "b" | ((value: string) => boolean) | undefined'.
+!!! error TS2769:       Type '(value: string) => void' is not assignable to type '(value: string) => boolean'.
+!!! related TS6500 tests/cases/compiler/reactDefaultPropsInferenceSuccess.tsx:6:3: The expected type comes from property 'when' which is declared here on type 'IntrinsicAttributes & IntrinsicClassAttributes<FieldFeedback<Props>> & Pick<Readonly<{ children?: ReactNode; }> & Readonly<Props>, "children" | "error"> & Partial<Pick<Readonly<{ children?: ReactNode; }> & Readonly<Props>, "when">> & Partial<Pick<{ when: () => boolean; }, never>>'
 !!! related TS6500 tests/cases/compiler/reactDefaultPropsInferenceSuccess.tsx:6:3: The expected type comes from property 'when' which is declared here on type 'IntrinsicAttributes & IntrinsicClassAttributes<FieldFeedback<Props>> & Pick<Readonly<{ children?: ReactNode; }> & Readonly<Props>, "children" | "error"> & Partial<Pick<Readonly<{ children?: ReactNode; }> & Readonly<Props>, "when">> & Partial<Pick<{ when: () => boolean; }, never>>'
     
     class FieldFeedbackBeta<P extends Props = BaseProps> extends React.Component<P> {
@@ -57,10 +77,16 @@ tests/cases/compiler/reactDefaultPropsInferenceSuccess.tsx(64,37): error TS2322:
     
     // Error: Void not assignable to boolean
     const Test2a = () => <FieldFeedbackBeta when={value => console.log(value)} error>Hah</FieldFeedbackBeta>;
-                                            ~~~~
-!!! error TS2322: Type '(value: string) => void' is not assignable to type '"a" | "b" | ((value: string) => boolean) | undefined'.
-!!! error TS2322:   Type '(value: string) => void' is not assignable to type '(value: string) => boolean'.
-!!! error TS2322:     Type 'void' is not assignable to type 'boolean'.
+                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(props: Readonly<Props>): FieldFeedbackBeta<Props>', gave the following error.
+!!! error TS2769:     Type '(value: string) => void' is not assignable to type '"a" | "b" | ((value: string) => boolean) | undefined'.
+!!! error TS2769:       Type '(value: string) => void' is not assignable to type '(value: string) => boolean'.
+!!! error TS2769:         Type 'void' is not assignable to type 'boolean'.
+!!! error TS2769:   Overload 2 of 2, '(props: Props, context?: any): FieldFeedbackBeta<Props>', gave the following error.
+!!! error TS2769:     Type '(value: string) => void' is not assignable to type '"a" | "b" | ((value: string) => boolean) | undefined'.
+!!! error TS2769:       Type '(value: string) => void' is not assignable to type '(value: string) => boolean'.
+!!! related TS6500 tests/cases/compiler/reactDefaultPropsInferenceSuccess.tsx:6:3: The expected type comes from property 'when' which is declared here on type 'IntrinsicAttributes & IntrinsicClassAttributes<FieldFeedbackBeta<Props>> & Pick<Readonly<{ children?: ReactNode; }> & Readonly<Props>, "children"> & Partial<Pick<Readonly<{ children?: ReactNode; }> & Readonly<Props>, "when" | "error">> & Partial<Pick<BaseProps, never>>'
 !!! related TS6500 tests/cases/compiler/reactDefaultPropsInferenceSuccess.tsx:6:3: The expected type comes from property 'when' which is declared here on type 'IntrinsicAttributes & IntrinsicClassAttributes<FieldFeedbackBeta<Props>> & Pick<Readonly<{ children?: ReactNode; }> & Readonly<Props>, "children"> & Partial<Pick<Readonly<{ children?: ReactNode; }> & Readonly<Props>, "when" | "error">> & Partial<Pick<BaseProps, never>>'
     
     interface MyPropsProps extends Props {
@@ -83,9 +109,14 @@ tests/cases/compiler/reactDefaultPropsInferenceSuccess.tsx(64,37): error TS2322:
     
     // Error: Void not assignable to boolean
     const Test4 = () => <FieldFeedback2 when={value => console.log(value)} />;
-                                        ~~~~
-!!! error TS2322: Type '(value: string) => void' is not assignable to type '(value: string) => boolean'.
-!!! error TS2322:   Type 'void' is not assignable to type 'boolean'.
+                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(props: Readonly<MyPropsProps>): FieldFeedback2<MyPropsProps>', gave the following error.
+!!! error TS2769:     Type '(value: string) => void' is not assignable to type '(value: string) => boolean'.
+!!! error TS2769:       Type 'void' is not assignable to type 'boolean'.
+!!! error TS2769:   Overload 2 of 2, '(props: MyPropsProps, context?: any): FieldFeedback2<MyPropsProps>', gave the following error.
+!!! error TS2769:     Type '(value: string) => void' is not assignable to type '(value: string) => boolean'.
+!!! related TS6500 tests/cases/compiler/reactDefaultPropsInferenceSuccess.tsx:46:3: The expected type comes from property 'when' which is declared here on type 'IntrinsicAttributes & IntrinsicClassAttributes<FieldFeedback2<MyPropsProps>> & Pick<Readonly<{ children?: ReactNode; }> & Readonly<MyPropsProps>, "children" | "error"> & Partial<Pick<Readonly<{ children?: ReactNode; }> & Readonly<MyPropsProps>, "when">> & Partial<Pick<{ when: () => boolean; }, never>>'
 !!! related TS6500 tests/cases/compiler/reactDefaultPropsInferenceSuccess.tsx:46:3: The expected type comes from property 'when' which is declared here on type 'IntrinsicAttributes & IntrinsicClassAttributes<FieldFeedback2<MyPropsProps>> & Pick<Readonly<{ children?: ReactNode; }> & Readonly<MyPropsProps>, "children" | "error"> & Partial<Pick<Readonly<{ children?: ReactNode; }> & Readonly<MyPropsProps>, "when">> & Partial<Pick<{ when: () => boolean; }, never>>'
     
     // OK

tests/baselines/reference/recursiveFunctionTypes.errors.txt

@@ -11,7 +11,13 @@ tests/cases/compiler/recursiveFunctionTypes.ts(30,10): error TS2394: This overlo
 tests/cases/compiler/recursiveFunctionTypes.ts(33,8): error TS2554: Expected 0-1 arguments, but got 2.
 tests/cases/compiler/recursiveFunctionTypes.ts(34,4): error TS2345: Argument of type '""' is not assignable to parameter of type '{ (): typeof f6; (a: typeof f6): () => number; }'.
 tests/cases/compiler/recursiveFunctionTypes.ts(42,8): error TS2554: Expected 0-1 arguments, but got 2.
-tests/cases/compiler/recursiveFunctionTypes.ts(43,4): error TS2345: Argument of type '""' is not assignable to parameter of type '{ (): typeof f7; (a: typeof f7): () => number; (a: number): number; (a?: typeof f7): typeof f7; }'.
+tests/cases/compiler/recursiveFunctionTypes.ts(43,1): error TS2769: No overload matches this call.
+  Overload 1 of 4, '(a: { (): typeof f7; (a: typeof f7): () => number; (a: number): number; (a?: typeof f7): typeof f7; }): () => number', gave the following error.
+    Argument of type '""' is not assignable to parameter of type '{ (): typeof f7; (a: typeof f7): () => number; (a: number): number; (a?: typeof f7): typeof f7; }'.
+  Overload 2 of 4, '(a: number): number', gave the following error.
+    Argument of type '""' is not assignable to parameter of type 'number'.
+  Overload 3 of 4, '(a?: { (): typeof f7; (a: typeof f7): () => number; (a: number): number; (a?: typeof f7): typeof f7; }): { (): typeof f7; (a: typeof f7): () => number; (a: number): number; (a?: typeof f7): typeof f7; }', gave the following error.
+    Argument of type '""' is not assignable to parameter of type '{ (): typeof f7; (a: typeof f7): () => number; (a: number): number; (a?: typeof f7): typeof f7; }'.
 
 
 ==== tests/cases/compiler/recursiveFunctionTypes.ts (13 errors) ====
@@ -84,6 +90,12 @@ tests/cases/compiler/recursiveFunctionTypes.ts(43,4): error TS2345: Argument of
            ~
 !!! error TS2554: Expected 0-1 arguments, but got 2.
     f7(""); // ok (function takes an any param)
-       ~~
-!!! error TS2345: Argument of type '""' is not assignable to parameter of type '{ (): typeof f7; (a: typeof f7): () => number; (a: number): number; (a?: typeof f7): typeof f7; }'.
+    ~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 4, '(a: { (): typeof f7; (a: typeof f7): () => number; (a: number): number; (a?: typeof f7): typeof f7; }): () => number', gave the following error.
+!!! error TS2769:     Argument of type '""' is not assignable to parameter of type '{ (): typeof f7; (a: typeof f7): () => number; (a: number): number; (a?: typeof f7): typeof f7; }'.
+!!! error TS2769:   Overload 2 of 4, '(a: number): number', gave the following error.
+!!! error TS2769:     Argument of type '""' is not assignable to parameter of type 'number'.
+!!! error TS2769:   Overload 3 of 4, '(a?: { (): typeof f7; (a: typeof f7): () => number; (a: number): number; (a?: typeof f7): typeof f7; }): { (): typeof f7; (a: typeof f7): () => number; (a: number): number; (a?: typeof f7): typeof f7; }', gave the following error.
+!!! error TS2769:     Argument of type '""' is not assignable to parameter of type '{ (): typeof f7; (a: typeof f7): () => number; (a: number): number; (a?: typeof f7): typeof f7; }'.
     f7(); // ok

tests/baselines/reference/specializedSignatureAsCallbackParameter1.errors.txt

@@ -1,5 +1,17 @@
-tests/cases/compiler/specializedSignatureAsCallbackParameter1.ts(7,4): error TS2345: Argument of type '1' is not assignable to parameter of type 'string'.
-tests/cases/compiler/specializedSignatureAsCallbackParameter1.ts(8,4): error TS2345: Argument of type '1' is not assignable to parameter of type 'string'.
+tests/cases/compiler/specializedSignatureAsCallbackParameter1.ts(7,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(a: number, cb: (x: number) => number): any', gave the following error.
+    Argument of type '(x: string) => number' is not assignable to parameter of type '(x: number) => number'.
+      Types of parameters 'x' and 'x' are incompatible.
+        Type 'number' is not assignable to type 'string'.
+  Overload 2 of 2, '(a: string, cb: (x: number) => number): any', gave the following error.
+    Argument of type '1' is not assignable to parameter of type 'string'.
+tests/cases/compiler/specializedSignatureAsCallbackParameter1.ts(8,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(a: number, cb: (x: number) => number): any', gave the following error.
+    Argument of type '(x: "hm") => number' is not assignable to parameter of type '(x: number) => number'.
+      Types of parameters 'x' and 'x' are incompatible.
+        Type 'number' is not assignable to type '"hm"'.
+  Overload 2 of 2, '(a: string, cb: (x: number) => number): any', gave the following error.
+    Argument of type '1' is not assignable to parameter of type 'string'.
 
 
 ==== tests/cases/compiler/specializedSignatureAsCallbackParameter1.ts (2 errors) ====
@@ -10,8 +22,20 @@ tests/cases/compiler/specializedSignatureAsCallbackParameter1.ts(8,4): error TS2
     }
     // both are errors
     x3(1, (x: string) => 1); 
-       ~
-!!! error TS2345: Argument of type '1' is not assignable to parameter of type 'string'.
+    ~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(a: number, cb: (x: number) => number): any', gave the following error.
+!!! error TS2769:     Argument of type '(x: string) => number' is not assignable to parameter of type '(x: number) => number'.
+!!! error TS2769:       Types of parameters 'x' and 'x' are incompatible.
+!!! error TS2769:         Type 'number' is not assignable to type 'string'.
+!!! error TS2769:   Overload 2 of 2, '(a: string, cb: (x: number) => number): any', gave the following error.
+!!! error TS2769:     Argument of type '1' is not assignable to parameter of type 'string'.
     x3(1, (x: 'hm') => 1); 
-       ~
-!!! error TS2345: Argument of type '1' is not assignable to parameter of type 'string'.
+    ~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(a: number, cb: (x: number) => number): any', gave the following error.
+!!! error TS2769:     Argument of type '(x: "hm") => number' is not assignable to parameter of type '(x: number) => number'.
+!!! error TS2769:       Types of parameters 'x' and 'x' are incompatible.
+!!! error TS2769:         Type 'number' is not assignable to type '"hm"'.
+!!! error TS2769:   Overload 2 of 2, '(a: string, cb: (x: number) => number): any', gave the following error.
+!!! error TS2769:     Argument of type '1' is not assignable to parameter of type 'string'.

tests/baselines/reference/strictBindCallApply1.errors.txt

@@ -1,4 +1,11 @@
-tests/cases/conformance/functions/strictBindCallApply1.ts(11,35): error TS2345: Argument of type '20' is not assignable to parameter of type 'string'.
+tests/cases/conformance/functions/strictBindCallApply1.ts(11,11): error TS2769: No overload matches this call.
+  Overload 1 of 6, '(this: (this: undefined, arg0: 10, arg1: string) => string, thisArg: undefined, arg0: 10, arg1: string): () => string', gave the following error.
+    Argument of type '20' is not assignable to parameter of type 'string'.
+  Overload 2 of 6, '(this: (this: undefined, ...args: (10 | 20)[]) => string, thisArg: undefined, ...args: (10 | 20)[]): (...args: (10 | 20)[]) => string', gave the following error.
+    The 'this' context of type '(a: number, b: string) => string' is not assignable to method's 'this' of type '(this: undefined, ...args: (10 | 20)[]) => string'.
+      Types of parameters 'b' and 'args' are incompatible.
+        Type '10 | 20' is not assignable to type 'string'.
+          Type '10' is not assignable to type 'string'.
 tests/cases/conformance/functions/strictBindCallApply1.ts(17,15): error TS2554: Expected 3 arguments, but got 2.
 tests/cases/conformance/functions/strictBindCallApply1.ts(18,35): error TS2345: Argument of type '20' is not assignable to parameter of type 'string'.
 tests/cases/conformance/functions/strictBindCallApply1.ts(19,44): error TS2554: Expected 3 arguments, but got 4.
@@ -8,8 +15,22 @@ tests/cases/conformance/functions/strictBindCallApply1.ts(23,37): error TS2322:
 tests/cases/conformance/functions/strictBindCallApply1.ts(24,32): error TS2345: Argument of type '[number, string, number]' is not assignable to parameter of type '[number, string]'.
   Types of property 'length' are incompatible.
     Type '3' is not assignable to type '2'.
-tests/cases/conformance/functions/strictBindCallApply1.ts(41,29): error TS2345: Argument of type '20' is not assignable to parameter of type 'string'.
-tests/cases/conformance/functions/strictBindCallApply1.ts(42,22): error TS2345: Argument of type 'undefined' is not assignable to parameter of type 'C'.
+tests/cases/conformance/functions/strictBindCallApply1.ts(41,11): error TS2769: No overload matches this call.
+  Overload 1 of 6, '(this: (this: C, arg0: 10, arg1: string) => string, thisArg: C, arg0: 10, arg1: string): () => string', gave the following error.
+    Argument of type '20' is not assignable to parameter of type 'string'.
+  Overload 2 of 6, '(this: (this: C, ...args: (10 | 20)[]) => string, thisArg: C, ...args: (10 | 20)[]): (...args: (10 | 20)[]) => string', gave the following error.
+    The 'this' context of type '(this: C, a: number, b: string) => string' is not assignable to method's 'this' of type '(this: C, ...args: (10 | 20)[]) => string'.
+      Types of parameters 'b' and 'args' are incompatible.
+        Type '10 | 20' is not assignable to type 'string'.
+          Type '10' is not assignable to type 'string'.
+tests/cases/conformance/functions/strictBindCallApply1.ts(42,11): error TS2769: No overload matches this call.
+  Overload 1 of 6, '(this: (this: C, a: number, b: string) => string, thisArg: C): (a: number, b: string) => string', gave the following error.
+    Argument of type 'undefined' is not assignable to parameter of type 'C'.
+  Overload 2 of 6, '(this: (this: C, ...args: (string | number)[]) => string, thisArg: C, ...args: (string | number)[]): (...args: (string | number)[]) => string', gave the following error.
+    The 'this' context of type '(this: C, a: number, b: string) => string' is not assignable to method's 'this' of type '(this: C, ...args: (string | number)[]) => string'.
+      Types of parameters 'a' and 'args' are incompatible.
+        Type 'string | number' is not assignable to type 'number'.
+          Type 'string' is not assignable to type 'number'.
 tests/cases/conformance/functions/strictBindCallApply1.ts(48,17): error TS2554: Expected 3 arguments, but got 2.
 tests/cases/conformance/functions/strictBindCallApply1.ts(49,29): error TS2345: Argument of type '20' is not assignable to parameter of type 'string'.
 tests/cases/conformance/functions/strictBindCallApply1.ts(50,38): error TS2554: Expected 3 arguments, but got 4.
@@ -18,7 +39,14 @@ tests/cases/conformance/functions/strictBindCallApply1.ts(54,26): error TS2345:
 tests/cases/conformance/functions/strictBindCallApply1.ts(55,31): error TS2322: Type 'number' is not assignable to type 'string'.
 tests/cases/conformance/functions/strictBindCallApply1.ts(56,26): error TS2345: Argument of type '[number, string, number]' is not assignable to parameter of type '[number, string]'.
 tests/cases/conformance/functions/strictBindCallApply1.ts(57,23): error TS2345: Argument of type 'undefined' is not assignable to parameter of type 'C'.
-tests/cases/conformance/functions/strictBindCallApply1.ts(62,33): error TS2345: Argument of type '20' is not assignable to parameter of type 'string'.
+tests/cases/conformance/functions/strictBindCallApply1.ts(62,11): error TS2769: No overload matches this call.
+  Overload 1 of 6, '(this: new (arg0: 10, arg1: string) => C, thisArg: any, arg0: 10, arg1: string): new () => C', gave the following error.
+    Argument of type '20' is not assignable to parameter of type 'string'.
+  Overload 2 of 6, '(this: new (...args: (10 | 20)[]) => C, thisArg: any, ...args: (10 | 20)[]): new (...args: (10 | 20)[]) => C', gave the following error.
+    The 'this' context of type 'typeof C' is not assignable to method's 'this' of type 'new (...args: (10 | 20)[]) => C'.
+      Types of parameters 'b' and 'args' are incompatible.
+        Type '10 | 20' is not assignable to type 'string'.
+          Type '10' is not assignable to type 'string'.
 tests/cases/conformance/functions/strictBindCallApply1.ts(65,3): error TS2554: Expected 3 arguments, but got 2.
 tests/cases/conformance/functions/strictBindCallApply1.ts(66,15): error TS2345: Argument of type '20' is not assignable to parameter of type 'string'.
 tests/cases/conformance/functions/strictBindCallApply1.ts(67,24): error TS2554: Expected 3 arguments, but got 4.
@@ -39,8 +67,15 @@ tests/cases/conformance/functions/strictBindCallApply1.ts(72,12): error TS2345:
     let f01 = foo.bind(undefined, 10);
     let f02 = foo.bind(undefined, 10, "hello");
     let f03 = foo.bind(undefined, 10, 20);  // Error
-                                      ~~
-!!! error TS2345: Argument of type '20' is not assignable to parameter of type 'string'.
+              ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 6, '(this: (this: undefined, arg0: 10, arg1: string) => string, thisArg: undefined, arg0: 10, arg1: string): () => string', gave the following error.
+!!! error TS2769:     Argument of type '20' is not assignable to parameter of type 'string'.
+!!! error TS2769:   Overload 2 of 6, '(this: (this: undefined, ...args: (10 | 20)[]) => string, thisArg: undefined, ...args: (10 | 20)[]): (...args: (10 | 20)[]) => string', gave the following error.
+!!! error TS2769:     The 'this' context of type '(a: number, b: string) => string' is not assignable to method's 'this' of type '(this: undefined, ...args: (10 | 20)[]) => string'.
+!!! error TS2769:       Types of parameters 'b' and 'args' are incompatible.
+!!! error TS2769:         Type '10 | 20' is not assignable to type 'string'.
+!!! error TS2769:           Type '10' is not assignable to type 'string'.
     
     let f04 = overloaded.bind(undefined);  // typeof overloaded
     let f05 = generic.bind(undefined);  // typeof generic
@@ -86,11 +121,25 @@ tests/cases/conformance/functions/strictBindCallApply1.ts(72,12): error TS2345:
     let f11 = c.foo.bind(c, 10);
     let f12 = c.foo.bind(c, 10, "hello");
     let f13 = c.foo.bind(c, 10, 20);  // Error
-                                ~~
-!!! error TS2345: Argument of type '20' is not assignable to parameter of type 'string'.
+              ~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 6, '(this: (this: C, arg0: 10, arg1: string) => string, thisArg: C, arg0: 10, arg1: string): () => string', gave the following error.
+!!! error TS2769:     Argument of type '20' is not assignable to parameter of type 'string'.
+!!! error TS2769:   Overload 2 of 6, '(this: (this: C, ...args: (10 | 20)[]) => string, thisArg: C, ...args: (10 | 20)[]): (...args: (10 | 20)[]) => string', gave the following error.
+!!! error TS2769:     The 'this' context of type '(this: C, a: number, b: string) => string' is not assignable to method's 'this' of type '(this: C, ...args: (10 | 20)[]) => string'.
+!!! error TS2769:       Types of parameters 'b' and 'args' are incompatible.
+!!! error TS2769:         Type '10 | 20' is not assignable to type 'string'.
+!!! error TS2769:           Type '10' is not assignable to type 'string'.
     let f14 = c.foo.bind(undefined);  // Error
-                         ~~~~~~~~~
-!!! error TS2345: Argument of type 'undefined' is not assignable to parameter of type 'C'.
+              ~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 6, '(this: (this: C, a: number, b: string) => string, thisArg: C): (a: number, b: string) => string', gave the following error.
+!!! error TS2769:     Argument of type 'undefined' is not assignable to parameter of type 'C'.
+!!! error TS2769:   Overload 2 of 6, '(this: (this: C, ...args: (string | number)[]) => string, thisArg: C, ...args: (string | number)[]): (...args: (string | number)[]) => string', gave the following error.
+!!! error TS2769:     The 'this' context of type '(this: C, a: number, b: string) => string' is not assignable to method's 'this' of type '(this: C, ...args: (string | number)[]) => string'.
+!!! error TS2769:       Types of parameters 'a' and 'args' are incompatible.
+!!! error TS2769:         Type 'string | number' is not assignable to type 'number'.
+!!! error TS2769:           Type 'string' is not assignable to type 'number'.
     
     let f15 = c.overloaded.bind(c);  // typeof C.prototype.overloaded
     let f16 = c.generic.bind(c);  // typeof C.prototype.generic
@@ -127,8 +176,15 @@ tests/cases/conformance/functions/strictBindCallApply1.ts(72,12): error TS2345:
     let f21 = C.bind(undefined, 10);
     let f22 = C.bind(undefined, 10, "hello");
     let f23 = C.bind(undefined, 10, 20);  // Error
-                                    ~~
-!!! error TS2345: Argument of type '20' is not assignable to parameter of type 'string'.
+              ~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 6, '(this: new (arg0: 10, arg1: string) => C, thisArg: any, arg0: 10, arg1: string): new () => C', gave the following error.
+!!! error TS2769:     Argument of type '20' is not assignable to parameter of type 'string'.
+!!! error TS2769:   Overload 2 of 6, '(this: new (...args: (10 | 20)[]) => C, thisArg: any, ...args: (10 | 20)[]): new (...args: (10 | 20)[]) => C', gave the following error.
+!!! error TS2769:     The 'this' context of type 'typeof C' is not assignable to method's 'this' of type 'new (...args: (10 | 20)[]) => C'.
+!!! error TS2769:       Types of parameters 'b' and 'args' are incompatible.
+!!! error TS2769:         Type '10 | 20' is not assignable to type 'string'.
+!!! error TS2769:           Type '10' is not assignable to type 'string'.
     
     C.call(c, 10, "hello");
     C.call(c, 10);  // Error

tests/baselines/reference/taggedTemplateStringsWithOverloadResolution1.errors.txt

@@ -1,11 +1,27 @@
 tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution1.ts(9,13): error TS2345: Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
   Property 'raw' is missing in type 'undefined[]' but required in type 'TemplateStringsArray'.
 tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution1.ts(10,13): error TS2345: Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
-tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution1.ts(11,13): error TS2345: Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
-tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution1.ts(12,13): error TS2345: Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
-tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution1.ts(13,13): error TS2345: Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
+tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution1.ts(11,9): error TS2769: No overload matches this call.
+  Overload 1 of 4, '(strs: TemplateStringsArray, x: number, y: number): boolean', gave the following error.
+    Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
+  Overload 2 of 4, '(strs: TemplateStringsArray, x: number, y: string): {}', gave the following error.
+    Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
+tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution1.ts(12,9): error TS2769: No overload matches this call.
+  Overload 1 of 4, '(strs: TemplateStringsArray, x: number, y: number): boolean', gave the following error.
+    Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
+  Overload 2 of 4, '(strs: TemplateStringsArray, x: number, y: string): {}', gave the following error.
+    Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
+tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution1.ts(13,9): error TS2769: No overload matches this call.
+  Overload 1 of 4, '(strs: TemplateStringsArray, x: number, y: number): boolean', gave the following error.
+    Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
+  Overload 2 of 4, '(strs: TemplateStringsArray, x: number, y: string): {}', gave the following error.
+    Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
 tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution1.ts(14,23): error TS2554: Expected 1-3 arguments, but got 4.
-tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution1.ts(19,20): error TS2345: Argument of type 'true' is not assignable to parameter of type 'string'.
+tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution1.ts(19,9): error TS2769: No overload matches this call.
+  Overload 1 of 4, '(strs: TemplateStringsArray, x: number, y: number): boolean', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'number'.
+  Overload 2 of 4, '(strs: TemplateStringsArray, x: number, y: string): {}', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'string'.
 tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution1.ts(21,24): error TS2554: Expected 1-3 arguments, but got 4.
 
 
@@ -27,14 +43,26 @@ tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolutio
                 ~~
 !!! error TS2345: Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
     var c = foo([], 1, 2);       // boolean
-                ~~
-!!! error TS2345: Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
+            ~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 4, '(strs: TemplateStringsArray, x: number, y: number): boolean', gave the following error.
+!!! error TS2769:     Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
+!!! error TS2769:   Overload 2 of 4, '(strs: TemplateStringsArray, x: number, y: string): {}', gave the following error.
+!!! error TS2769:     Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
     var d = foo([], 1, true);    // boolean (with error)
-                ~~
-!!! error TS2345: Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
+            ~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 4, '(strs: TemplateStringsArray, x: number, y: number): boolean', gave the following error.
+!!! error TS2769:     Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
+!!! error TS2769:   Overload 2 of 4, '(strs: TemplateStringsArray, x: number, y: string): {}', gave the following error.
+!!! error TS2769:     Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
     var e = foo([], 1, "2");     // {}
-                ~~
-!!! error TS2345: Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
+            ~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 4, '(strs: TemplateStringsArray, x: number, y: number): boolean', gave the following error.
+!!! error TS2769:     Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
+!!! error TS2769:   Overload 2 of 4, '(strs: TemplateStringsArray, x: number, y: string): {}', gave the following error.
+!!! error TS2769:     Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
     var f = foo([], 1, 2, 3);    // any (with error)
                           ~
 !!! error TS2554: Expected 1-3 arguments, but got 4.
@@ -43,8 +71,12 @@ tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolutio
     var v = foo `${1}`;          // string
     var w = foo `${1}${2}`;      // boolean
     var x = foo `${1}${true}`;   // boolean (with error)
-                       ~~~~
-!!! error TS2345: Argument of type 'true' is not assignable to parameter of type 'string'.
+            ~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 4, '(strs: TemplateStringsArray, x: number, y: number): boolean', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'number'.
+!!! error TS2769:   Overload 2 of 4, '(strs: TemplateStringsArray, x: number, y: string): {}', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'string'.
     var y = foo `${1}${"2"}`;    // {}
     var z = foo `${1}${2}${3}`;  // any (with error)
                            ~

tests/baselines/reference/taggedTemplateStringsWithOverloadResolution1_ES6.errors.txt

@@ -1,11 +1,27 @@
 tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution1_ES6.ts(9,13): error TS2345: Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
   Property 'raw' is missing in type 'undefined[]' but required in type 'TemplateStringsArray'.
 tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution1_ES6.ts(10,13): error TS2345: Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
-tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution1_ES6.ts(11,13): error TS2345: Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
-tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution1_ES6.ts(12,13): error TS2345: Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
-tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution1_ES6.ts(13,13): error TS2345: Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
+tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution1_ES6.ts(11,9): error TS2769: No overload matches this call.
+  Overload 1 of 4, '(strs: TemplateStringsArray, x: number, y: number): boolean', gave the following error.
+    Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
+  Overload 2 of 4, '(strs: TemplateStringsArray, x: number, y: string): {}', gave the following error.
+    Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
+tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution1_ES6.ts(12,9): error TS2769: No overload matches this call.
+  Overload 1 of 4, '(strs: TemplateStringsArray, x: number, y: number): boolean', gave the following error.
+    Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
+  Overload 2 of 4, '(strs: TemplateStringsArray, x: number, y: string): {}', gave the following error.
+    Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
+tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution1_ES6.ts(13,9): error TS2769: No overload matches this call.
+  Overload 1 of 4, '(strs: TemplateStringsArray, x: number, y: number): boolean', gave the following error.
+    Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
+  Overload 2 of 4, '(strs: TemplateStringsArray, x: number, y: string): {}', gave the following error.
+    Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
 tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution1_ES6.ts(14,23): error TS2554: Expected 1-3 arguments, but got 4.
-tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution1_ES6.ts(19,20): error TS2345: Argument of type 'true' is not assignable to parameter of type 'string'.
+tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution1_ES6.ts(19,9): error TS2769: No overload matches this call.
+  Overload 1 of 4, '(strs: TemplateStringsArray, x: number, y: number): boolean', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'number'.
+  Overload 2 of 4, '(strs: TemplateStringsArray, x: number, y: string): {}', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'string'.
 tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution1_ES6.ts(21,24): error TS2554: Expected 1-3 arguments, but got 4.
 
 
@@ -27,14 +43,26 @@ tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolutio
                 ~~
 !!! error TS2345: Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
     var c = foo([], 1, 2);       // boolean
-                ~~
-!!! error TS2345: Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
+            ~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 4, '(strs: TemplateStringsArray, x: number, y: number): boolean', gave the following error.
+!!! error TS2769:     Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
+!!! error TS2769:   Overload 2 of 4, '(strs: TemplateStringsArray, x: number, y: string): {}', gave the following error.
+!!! error TS2769:     Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
     var d = foo([], 1, true);    // boolean (with error)
-                ~~
-!!! error TS2345: Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
+            ~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 4, '(strs: TemplateStringsArray, x: number, y: number): boolean', gave the following error.
+!!! error TS2769:     Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
+!!! error TS2769:   Overload 2 of 4, '(strs: TemplateStringsArray, x: number, y: string): {}', gave the following error.
+!!! error TS2769:     Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
     var e = foo([], 1, "2");     // {}
-                ~~
-!!! error TS2345: Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
+            ~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 4, '(strs: TemplateStringsArray, x: number, y: number): boolean', gave the following error.
+!!! error TS2769:     Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
+!!! error TS2769:   Overload 2 of 4, '(strs: TemplateStringsArray, x: number, y: string): {}', gave the following error.
+!!! error TS2769:     Argument of type 'undefined[]' is not assignable to parameter of type 'TemplateStringsArray'.
     var f = foo([], 1, 2, 3);    // any (with error)
                           ~
 !!! error TS2554: Expected 1-3 arguments, but got 4.
@@ -43,8 +71,12 @@ tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolutio
     var v = foo `${1}`;          // string
     var w = foo `${1}${2}`;      // boolean
     var x = foo `${1}${true}`;   // boolean (with error)
-                       ~~~~
-!!! error TS2345: Argument of type 'true' is not assignable to parameter of type 'string'.
+            ~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 4, '(strs: TemplateStringsArray, x: number, y: number): boolean', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'number'.
+!!! error TS2769:   Overload 2 of 4, '(strs: TemplateStringsArray, x: number, y: string): {}', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'string'.
     var y = foo `${1}${"2"}`;    // {}
     var z = foo `${1}${2}${3}`;  // any (with error)
                            ~

tests/baselines/reference/taggedTemplateStringsWithOverloadResolution3.errors.txt

@@ -1,8 +1,20 @@
-tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution3.ts(9,9): error TS2345: Argument of type '{}' is not assignable to parameter of type 'number'.
+tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution3.ts(9,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(strs: TemplateStringsArray, s: string): string', gave the following error.
+    Argument of type '{}' is not assignable to parameter of type 'string'.
+  Overload 2 of 2, '(strs: TemplateStringsArray, n: number): number', gave the following error.
+    Argument of type '{}' is not assignable to parameter of type 'number'.
 tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution3.ts(18,4): error TS2339: Property 'foo' does not exist on type 'Date'.
 tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution3.ts(44,1): error TS2554: Expected 2-4 arguments, but got 1.
-tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution3.ts(62,9): error TS2345: Argument of type 'true' is not assignable to parameter of type 'number'.
-tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution3.ts(63,18): error TS2345: Argument of type 'true' is not assignable to parameter of type 'string'.
+tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution3.ts(62,1): error TS2769: No overload matches this call.
+  Overload 1 of 3, '(strs: TemplateStringsArray, n: string, m: any): any', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'string'.
+  Overload 2 of 3, '(strs: TemplateStringsArray, n: number, m: any): any', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'number'.
+tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution3.ts(63,1): error TS2769: No overload matches this call.
+  Overload 1 of 3, '(strs: TemplateStringsArray, n: any, m: number): any', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'number'.
+  Overload 2 of 3, '(strs: TemplateStringsArray, n: any, m: string): any', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'string'.
 tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution3.ts(69,18): error TS2339: Property 'toFixed' does not exist on type 'string'.
 
 
@@ -16,8 +28,12 @@ tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolutio
     
     // No candidate overloads found
     fn1 `${ {} }`; // Error
-            ~~
-!!! error TS2345: Argument of type '{}' is not assignable to parameter of type 'number'.
+    ~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(strs: TemplateStringsArray, s: string): string', gave the following error.
+!!! error TS2769:     Argument of type '{}' is not assignable to parameter of type 'string'.
+!!! error TS2769:   Overload 2 of 2, '(strs: TemplateStringsArray, n: number): number', gave the following error.
+!!! error TS2769:     Argument of type '{}' is not assignable to parameter of type 'number'.
     
     function fn2(strs: TemplateStringsArray, s: string, n: number): number;
     function fn2<T>(strs: TemplateStringsArray, n: number, t: T): T;
@@ -76,11 +92,19 @@ tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolutio
     
     // Generic overloads with constraints called without type arguments but with types that do not satisfy the constraints
     fn4 `${ true }${ null }`;
-            ~~~~
-!!! error TS2345: Argument of type 'true' is not assignable to parameter of type 'number'.
+    ~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 3, '(strs: TemplateStringsArray, n: string, m: any): any', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'string'.
+!!! error TS2769:   Overload 2 of 3, '(strs: TemplateStringsArray, n: number, m: any): any', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'number'.
     fn4 `${ null }${ true }`;
-                     ~~~~
-!!! error TS2345: Argument of type 'true' is not assignable to parameter of type 'string'.
+    ~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 3, '(strs: TemplateStringsArray, n: any, m: number): any', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'number'.
+!!! error TS2769:   Overload 2 of 3, '(strs: TemplateStringsArray, n: any, m: string): any', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'string'.
     
     // Non - generic overloads where contextual typing of function arguments has errors
     function fn5(strs: TemplateStringsArray, f: (n: string) => void): string;

tests/baselines/reference/taggedTemplateStringsWithOverloadResolution3_ES6.errors.txt

@@ -1,8 +1,20 @@
-tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution3_ES6.ts(9,9): error TS2345: Argument of type '{}' is not assignable to parameter of type 'number'.
+tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution3_ES6.ts(9,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(strs: TemplateStringsArray, s: string): string', gave the following error.
+    Argument of type '{}' is not assignable to parameter of type 'string'.
+  Overload 2 of 2, '(strs: TemplateStringsArray, n: number): number', gave the following error.
+    Argument of type '{}' is not assignable to parameter of type 'number'.
 tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution3_ES6.ts(18,4): error TS2339: Property 'foo' does not exist on type 'Date'.
 tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution3_ES6.ts(44,1): error TS2554: Expected 2-4 arguments, but got 1.
-tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution3_ES6.ts(62,9): error TS2345: Argument of type 'true' is not assignable to parameter of type 'number'.
-tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution3_ES6.ts(63,18): error TS2345: Argument of type 'true' is not assignable to parameter of type 'string'.
+tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution3_ES6.ts(62,1): error TS2769: No overload matches this call.
+  Overload 1 of 3, '(strs: TemplateStringsArray, n: string, m: any): any', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'string'.
+  Overload 2 of 3, '(strs: TemplateStringsArray, n: number, m: any): any', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'number'.
+tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution3_ES6.ts(63,1): error TS2769: No overload matches this call.
+  Overload 1 of 3, '(strs: TemplateStringsArray, n: any, m: number): any', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'number'.
+  Overload 2 of 3, '(strs: TemplateStringsArray, n: any, m: string): any', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'string'.
 tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolution3_ES6.ts(69,18): error TS2551: Property 'toFixed' does not exist on type 'string'. Did you mean 'fixed'?
 
 
@@ -16,8 +28,12 @@ tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolutio
     
     // No candidate overloads found
     fn1 `${ {} }`; // Error
-            ~~
-!!! error TS2345: Argument of type '{}' is not assignable to parameter of type 'number'.
+    ~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(strs: TemplateStringsArray, s: string): string', gave the following error.
+!!! error TS2769:     Argument of type '{}' is not assignable to parameter of type 'string'.
+!!! error TS2769:   Overload 2 of 2, '(strs: TemplateStringsArray, n: number): number', gave the following error.
+!!! error TS2769:     Argument of type '{}' is not assignable to parameter of type 'number'.
     
     function fn2(strs: TemplateStringsArray, s: string, n: number): number;
     function fn2<T>(strs: TemplateStringsArray, n: number, t: T): T;
@@ -76,11 +92,19 @@ tests/cases/conformance/es6/templates/taggedTemplateStringsWithOverloadResolutio
     
     // Generic overloads with constraints called without type arguments but with types that do not satisfy the constraints
     fn4 `${ true }${ null }`;
-            ~~~~
-!!! error TS2345: Argument of type 'true' is not assignable to parameter of type 'number'.
+    ~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 3, '(strs: TemplateStringsArray, n: string, m: any): any', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'string'.
+!!! error TS2769:   Overload 2 of 3, '(strs: TemplateStringsArray, n: number, m: any): any', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'number'.
     fn4 `${ null }${ true }`;
-                     ~~~~
-!!! error TS2345: Argument of type 'true' is not assignable to parameter of type 'string'.
+    ~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 3, '(strs: TemplateStringsArray, n: any, m: number): any', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'number'.
+!!! error TS2769:   Overload 2 of 3, '(strs: TemplateStringsArray, n: any, m: string): any', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'string'.
     
     // Non - generic overloads where contextual typing of function arguments has errors
     function fn5(strs: TemplateStringsArray, f: (n: string) => void): string;

tests/baselines/reference/tsxElementResolution9.errors.txt

@@ -1,6 +1,18 @@
-tests/cases/conformance/jsx/file.tsx(11,2): error TS2322: Type '{}' is not assignable to type 'number'.
-tests/cases/conformance/jsx/file.tsx(18,2): error TS2322: Type '{}' is not assignable to type 'number'.
-tests/cases/conformance/jsx/file.tsx(25,2): error TS2322: Type '{ x: number; }' is not assignable to type 'number'.
+tests/cases/conformance/jsx/file.tsx(11,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(n: string): { x: number; }', gave the following error.
+    Type '{}' is not assignable to type 'string'.
+  Overload 2 of 2, '(n: number): { y: string; }', gave the following error.
+    Type '{}' is not assignable to type 'number'.
+tests/cases/conformance/jsx/file.tsx(18,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(n: string): { x: number; }', gave the following error.
+    Type '{}' is not assignable to type 'string'.
+  Overload 2 of 2, '(n: number): { y: string; }', gave the following error.
+    Type '{}' is not assignable to type 'number'.
+tests/cases/conformance/jsx/file.tsx(25,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(n: string): { x: number; }', gave the following error.
+    Type '{ x: number; }' is not assignable to type 'string'.
+  Overload 2 of 2, '(n: number): { x: number; y: string; }', gave the following error.
+    Type '{ x: number; }' is not assignable to type 'number'.
 
 
 ==== tests/cases/conformance/jsx/file.tsx (3 errors) ====
@@ -15,8 +27,12 @@ tests/cases/conformance/jsx/file.tsx(25,2): error TS2322: Type '{ x: number; }'
     }
     var Obj1: Obj1;
     <Obj1 />; // Error, return type is not an object type
-     ~~~~
-!!! error TS2322: Type '{}' is not assignable to type 'number'.
+    ~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(n: string): { x: number; }', gave the following error.
+!!! error TS2769:     Type '{}' is not assignable to type 'string'.
+!!! error TS2769:   Overload 2 of 2, '(n: number): { y: string; }', gave the following error.
+!!! error TS2769:     Type '{}' is not assignable to type 'number'.
     
     interface Obj2 {
     	(n: string): { x: number };
@@ -24,8 +40,12 @@ tests/cases/conformance/jsx/file.tsx(25,2): error TS2322: Type '{ x: number; }'
     }
     var Obj2: Obj2;
     <Obj2 />; // Error, return type is not an object type
-     ~~~~
-!!! error TS2322: Type '{}' is not assignable to type 'number'.
+    ~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(n: string): { x: number; }', gave the following error.
+!!! error TS2769:     Type '{}' is not assignable to type 'string'.
+!!! error TS2769:   Overload 2 of 2, '(n: number): { y: string; }', gave the following error.
+!!! error TS2769:     Type '{}' is not assignable to type 'number'.
     
     interface Obj3 {
     	(n: string): { x: number };
@@ -33,6 +53,10 @@ tests/cases/conformance/jsx/file.tsx(25,2): error TS2322: Type '{ x: number; }'
     }
     var Obj3: Obj3;
     <Obj3 x={42} />; // OK
-     ~~~~
-!!! error TS2322: Type '{ x: number; }' is not assignable to type 'number'.
+    ~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(n: string): { x: number; }', gave the following error.
+!!! error TS2769:     Type '{ x: number; }' is not assignable to type 'string'.
+!!! error TS2769:   Overload 2 of 2, '(n: number): { x: number; y: string; }', gave the following error.
+!!! error TS2769:     Type '{ x: number; }' is not assignable to type 'number'.
     

tests/baselines/reference/tsxNotUsingApparentTypeOfSFC.errors.txt

@@ -1,6 +1,10 @@
 tests/cases/compiler/tsxNotUsingApparentTypeOfSFC.tsx(14,14): error TS2322: Type '{}' is not assignable to type 'P'.
   '{}' is assignable to the constraint of type 'P', but 'P' could be instantiated with a different subtype of constraint '{}'.
-tests/cases/compiler/tsxNotUsingApparentTypeOfSFC.tsx(15,14): error TS2322: Type '{}' is not assignable to type 'Readonly<P>'.
+tests/cases/compiler/tsxNotUsingApparentTypeOfSFC.tsx(15,13): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(props: Readonly<P>): MyComponent', gave the following error.
+    Type '{}' is not assignable to type 'Readonly<P>'.
+  Overload 2 of 2, '(props: P, context?: any): MyComponent', gave the following error.
+    Type '{}' is not assignable to type 'Readonly<P>'.
 
 
 ==== tests/cases/compiler/tsxNotUsingApparentTypeOfSFC.tsx (2 errors) ====
@@ -22,8 +26,12 @@ tests/cases/compiler/tsxNotUsingApparentTypeOfSFC.tsx(15,14): error TS2322: Type
 !!! error TS2322: Type '{}' is not assignable to type 'P'.
 !!! error TS2322:   '{}' is assignable to the constraint of type 'P', but 'P' could be instantiated with a different subtype of constraint '{}'.
         let y = <MyComponent />;  // should error
-                 ~~~~~~~~~~~
-!!! error TS2322: Type '{}' is not assignable to type 'Readonly<P>'.
+                ~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(props: Readonly<P>): MyComponent', gave the following error.
+!!! error TS2769:     Type '{}' is not assignable to type 'Readonly<P>'.
+!!! error TS2769:   Overload 2 of 2, '(props: P, context?: any): MyComponent', gave the following error.
+!!! error TS2769:     Type '{}' is not assignable to type 'Readonly<P>'.
     
         let z = <MySFC {...wrappedProps} /> // should work
         let q = <MyComponent {...wrappedProps} /> // should work

tests/baselines/reference/tsxStatelessFunctionComponentOverload4.errors.txt

@@ -1,18 +1,79 @@
-tests/cases/conformance/jsx/file.tsx(12,13): error TS2322: Type '{ extraProp: true; }' is not assignable to type 'IntrinsicAttributes & { yy: number; yy1: string; }'.
-  Property 'extraProp' does not exist on type 'IntrinsicAttributes & { yy: number; yy1: string; }'.
-tests/cases/conformance/jsx/file.tsx(13,13): error TS2741: Property 'yy1' is missing in type '{ yy: number; }' but required in type '{ yy: number; yy1: string; }'.
-tests/cases/conformance/jsx/file.tsx(14,31): error TS2322: Type 'true' is not assignable to type 'string'.
-tests/cases/conformance/jsx/file.tsx(16,13): error TS2322: Type '{ y1: number; yy: number; yy1: string; }' is not assignable to type 'IntrinsicAttributes & { yy: number; yy1: string; }'.
-  Property 'y1' does not exist on type 'IntrinsicAttributes & { yy: number; yy1: string; }'.
-tests/cases/conformance/jsx/file.tsx(17,13): error TS2322: Type '{ yy: boolean; yy1: string; }' is not assignable to type '{ yy: number; yy1: string; }'.
-  Types of property 'yy' are incompatible.
-    Type 'boolean' is not assignable to type 'number'.
-tests/cases/conformance/jsx/file.tsx(25,13): error TS2741: Property 'yy' is missing in type '{ extra-data: true; }' but required in type '{ yy: string; direction?: number; }'.
-tests/cases/conformance/jsx/file.tsx(26,40): error TS2322: Type 'string' is not assignable to type 'number'.
-tests/cases/conformance/jsx/file.tsx(33,32): error TS2322: Type 'string' is not assignable to type 'boolean'.
-tests/cases/conformance/jsx/file.tsx(34,29): error TS2322: Type 'string' is not assignable to type 'boolean'.
-tests/cases/conformance/jsx/file.tsx(35,29): error TS2322: Type 'string' is not assignable to type 'boolean'.
-tests/cases/conformance/jsx/file.tsx(36,29): error TS2322: Type 'string' is not assignable to type 'boolean'.
+tests/cases/conformance/jsx/file.tsx(12,12): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(): Element', gave the following error.
+    Type '{ extraProp: true; }' is not assignable to type 'IntrinsicAttributes'.
+      Property 'extraProp' does not exist on type 'IntrinsicAttributes'.
+  Overload 2 of 2, '(l: { yy: number; yy1: string; }): Element', gave the following error.
+    Type '{ extraProp: true; }' is not assignable to type 'IntrinsicAttributes & { yy: number; yy1: string; }'.
+      Property 'extraProp' does not exist on type 'IntrinsicAttributes & { yy: number; yy1: string; }'.
+tests/cases/conformance/jsx/file.tsx(13,12): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(): Element', gave the following error.
+    Type '{ yy: number; }' is not assignable to type 'IntrinsicAttributes'.
+      Property 'yy' does not exist on type 'IntrinsicAttributes'.
+  Overload 2 of 2, '(l: { yy: number; yy1: string; }): Element', gave the following error.
+    Property 'yy1' is missing in type '{ yy: number; }' but required in type '{ yy: number; yy1: string; }'.
+tests/cases/conformance/jsx/file.tsx(14,12): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(): Element', gave the following error.
+    Type '{ yy1: true; yy: number; }' is not assignable to type 'IntrinsicAttributes'.
+      Property 'yy1' does not exist on type 'IntrinsicAttributes'.
+  Overload 2 of 2, '(l: { yy: number; yy1: string; }): Element', gave the following error.
+    Type 'true' is not assignable to type 'string'.
+tests/cases/conformance/jsx/file.tsx(16,12): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(): Element', gave the following error.
+    Type '{ y1: number; yy: number; yy1: string; }' is not assignable to type 'IntrinsicAttributes'.
+      Property 'y1' does not exist on type 'IntrinsicAttributes'.
+  Overload 2 of 2, '(l: { yy: number; yy1: string; }): Element', gave the following error.
+    Type '{ y1: number; yy: number; yy1: string; }' is not assignable to type 'IntrinsicAttributes & { yy: number; yy1: string; }'.
+      Property 'y1' does not exist on type 'IntrinsicAttributes & { yy: number; yy1: string; }'.
+tests/cases/conformance/jsx/file.tsx(17,12): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(): Element', gave the following error.
+    Type '{ yy: boolean; yy1: string; }' has no properties in common with type 'IntrinsicAttributes'.
+  Overload 2 of 2, '(l: { yy: number; yy1: string; }): Element', gave the following error.
+    Type '{ yy: boolean; yy1: string; }' is not assignable to type '{ yy: number; yy1: string; }'.
+      Types of property 'yy' are incompatible.
+        Type 'boolean' is not assignable to type 'number'.
+tests/cases/conformance/jsx/file.tsx(25,12): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(j: { "extra-data": string; }): Element', gave the following error.
+    Type 'true' is not assignable to type 'string'.
+  Overload 2 of 2, '(n: { yy: string; direction?: number; }): Element', gave the following error.
+    Property 'yy' is missing in type '{ extra-data: true; }' but required in type '{ yy: string; direction?: number; }'.
+tests/cases/conformance/jsx/file.tsx(26,12): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(j: { "extra-data": string; }): Element', gave the following error.
+    Type '{ yy: string; direction: string; }' is not assignable to type 'IntrinsicAttributes & { "extra-data": string; }'.
+      Property 'yy' does not exist on type 'IntrinsicAttributes & { "extra-data": string; }'.
+  Overload 2 of 2, '(n: { yy: string; direction?: number; }): Element', gave the following error.
+    Type 'string' is not assignable to type 'number'.
+tests/cases/conformance/jsx/file.tsx(33,12): error TS2769: No overload matches this call.
+  Overload 1 of 3, '(a: { y1?: string; y2?: number; }): Element', gave the following error.
+    Type 'true' is not assignable to type 'string'.
+  Overload 2 of 3, '(a: { y1?: string; y2?: number; children: Element; }): Element', gave the following error.
+    Type 'true' is not assignable to type 'string'.
+  Overload 3 of 3, '(a: { y1: boolean; y2?: number; y3: boolean; }): Element', gave the following error.
+    Type 'string' is not assignable to type 'boolean'.
+tests/cases/conformance/jsx/file.tsx(34,12): error TS2769: No overload matches this call.
+  Overload 1 of 3, '(a: { y1?: string; y2?: number; }): Element', gave the following error.
+    Type '{ y1: string; y2: number; y3: true; }' is not assignable to type 'IntrinsicAttributes & { y1?: string; y2?: number; }'.
+      Property 'y3' does not exist on type 'IntrinsicAttributes & { y1?: string; y2?: number; }'.
+  Overload 2 of 3, '(a: { y1?: string; y2?: number; children: Element; }): Element', gave the following error.
+    Type '{ y1: string; y2: number; y3: true; }' is not assignable to type 'IntrinsicAttributes & { y1?: string; y2?: number; children: Element; }'.
+      Property 'y3' does not exist on type 'IntrinsicAttributes & { y1?: string; y2?: number; children: Element; }'.
+  Overload 3 of 3, '(a: { y1: boolean; y2?: number; y3: boolean; }): Element', gave the following error.
+    Type 'string' is not assignable to type 'boolean'.
+tests/cases/conformance/jsx/file.tsx(35,12): error TS2769: No overload matches this call.
+  Overload 1 of 3, '(a: { y1?: string; y2?: number; }): Element', gave the following error.
+    Type '{ y1: string; y2: number; children: string; }' is not assignable to type 'IntrinsicAttributes & { y1?: string; y2?: number; }'.
+      Property 'children' does not exist on type 'IntrinsicAttributes & { y1?: string; y2?: number; }'.
+  Overload 2 of 3, '(a: { y1?: string; y2?: number; children: Element; }): Element', gave the following error.
+    Type 'string' is not assignable to type 'Element'.
+  Overload 3 of 3, '(a: { y1: boolean; y2?: number; y3: boolean; }): Element', gave the following error.
+    Type 'string' is not assignable to type 'boolean'.
+tests/cases/conformance/jsx/file.tsx(36,12): error TS2769: No overload matches this call.
+  Overload 1 of 3, '(a: { y1?: string; y2?: number; }): Element', gave the following error.
+    Type '{ children: string; y1: string; y2: number; }' is not assignable to type 'IntrinsicAttributes & { y1?: string; y2?: number; }'.
+      Property 'children' does not exist on type 'IntrinsicAttributes & { y1?: string; y2?: number; }'.
+  Overload 2 of 3, '(a: { y1?: string; y2?: number; children: Element; }): Element', gave the following error.
+    'TestingOptional' components don't accept text as child elements. Text in JSX has the type 'string', but the expected type of 'children' is 'Element'.
+  Overload 3 of 3, '(a: { y1: boolean; y2?: number; y3: boolean; }): Element', gave the following error.
+    Type 'string' is not assignable to type 'boolean'.
 
 
 ==== tests/cases/conformance/jsx/file.tsx (11 errors) ====
@@ -28,27 +89,51 @@ tests/cases/conformance/jsx/file.tsx(36,29): error TS2322: Type 'string' is not
     
     // Error
     const c0 = <OneThing extraProp />;  // extra property;
-                ~~~~~~~~
-!!! error TS2322: Type '{ extraProp: true; }' is not assignable to type 'IntrinsicAttributes & { yy: number; yy1: string; }'.
-!!! error TS2322:   Property 'extraProp' does not exist on type 'IntrinsicAttributes & { yy: number; yy1: string; }'.
+               ~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(): Element', gave the following error.
+!!! error TS2769:     Type '{ extraProp: true; }' is not assignable to type 'IntrinsicAttributes'.
+!!! error TS2769:       Property 'extraProp' does not exist on type 'IntrinsicAttributes'.
+!!! error TS2769:   Overload 2 of 2, '(l: { yy: number; yy1: string; }): Element', gave the following error.
+!!! error TS2769:     Type '{ extraProp: true; }' is not assignable to type 'IntrinsicAttributes & { yy: number; yy1: string; }'.
+!!! error TS2769:       Property 'extraProp' does not exist on type 'IntrinsicAttributes & { yy: number; yy1: string; }'.
     const c1 = <OneThing yy={10}/>;  // missing property;
-                ~~~~~~~~
-!!! error TS2741: Property 'yy1' is missing in type '{ yy: number; }' but required in type '{ yy: number; yy1: string; }'.
+               ~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(): Element', gave the following error.
+!!! error TS2769:     Type '{ yy: number; }' is not assignable to type 'IntrinsicAttributes'.
+!!! error TS2769:       Property 'yy' does not exist on type 'IntrinsicAttributes'.
+!!! error TS2769:   Overload 2 of 2, '(l: { yy: number; yy1: string; }): Element', gave the following error.
+!!! error TS2769:     Property 'yy1' is missing in type '{ yy: number; }' but required in type '{ yy: number; yy1: string; }'.
 !!! related TS2728 tests/cases/conformance/jsx/file.tsx:3:43: 'yy1' is declared here.
     const c2 = <OneThing {...obj} yy1 />; // type incompatible;
-                                  ~~~
-!!! error TS2322: Type 'true' is not assignable to type 'string'.
+               ~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(): Element', gave the following error.
+!!! error TS2769:     Type '{ yy1: true; yy: number; }' is not assignable to type 'IntrinsicAttributes'.
+!!! error TS2769:       Property 'yy1' does not exist on type 'IntrinsicAttributes'.
+!!! error TS2769:   Overload 2 of 2, '(l: { yy: number; yy1: string; }): Element', gave the following error.
+!!! error TS2769:     Type 'true' is not assignable to type 'string'.
 !!! related TS6500 tests/cases/conformance/jsx/file.tsx:3:43: The expected type comes from property 'yy1' which is declared here on type 'IntrinsicAttributes & { yy: number; yy1: string; }'
     const c3 = <OneThing {...obj} {...{extra: "extra attr"}} />;  //  This is OK becuase all attribute are spread
     const c4 = <OneThing {...obj} y1={10000} />;  // extra property;
-                ~~~~~~~~
-!!! error TS2322: Type '{ y1: number; yy: number; yy1: string; }' is not assignable to type 'IntrinsicAttributes & { yy: number; yy1: string; }'.
-!!! error TS2322:   Property 'y1' does not exist on type 'IntrinsicAttributes & { yy: number; yy1: string; }'.
+               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(): Element', gave the following error.
+!!! error TS2769:     Type '{ y1: number; yy: number; yy1: string; }' is not assignable to type 'IntrinsicAttributes'.
+!!! error TS2769:       Property 'y1' does not exist on type 'IntrinsicAttributes'.
+!!! error TS2769:   Overload 2 of 2, '(l: { yy: number; yy1: string; }): Element', gave the following error.
+!!! error TS2769:     Type '{ y1: number; yy: number; yy1: string; }' is not assignable to type 'IntrinsicAttributes & { yy: number; yy1: string; }'.
+!!! error TS2769:       Property 'y1' does not exist on type 'IntrinsicAttributes & { yy: number; yy1: string; }'.
     const c5 = <OneThing {...obj} {...{yy: true}} />;  // type incompatible;
-                ~~~~~~~~
-!!! error TS2322: Type '{ yy: boolean; yy1: string; }' is not assignable to type '{ yy: number; yy1: string; }'.
-!!! error TS2322:   Types of property 'yy' are incompatible.
-!!! error TS2322:     Type 'boolean' is not assignable to type 'number'.
+               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(): Element', gave the following error.
+!!! error TS2769:     Type '{ yy: boolean; yy1: string; }' has no properties in common with type 'IntrinsicAttributes'.
+!!! error TS2769:   Overload 2 of 2, '(l: { yy: number; yy1: string; }): Element', gave the following error.
+!!! error TS2769:     Type '{ yy: boolean; yy1: string; }' is not assignable to type '{ yy: number; yy1: string; }'.
+!!! error TS2769:       Types of property 'yy' are incompatible.
+!!! error TS2769:         Type 'boolean' is not assignable to type 'number'.
     const c6 = <OneThing {...obj2} {...{extra: "extra attr"}} />;  // Should error as there is extra attribute that doesn't match any. Current it is not
     const c7 = <OneThing {...obj2} yy />;  // Should error as there is extra attribute that doesn't match any. Current it is not
     
@@ -57,12 +142,22 @@ tests/cases/conformance/jsx/file.tsx(36,29): error TS2322: Type 'string' is not
     
     // Error
     const d1 = <TestingOneThing extra-data />
-                ~~~~~~~~~~~~~~~
-!!! error TS2741: Property 'yy' is missing in type '{ extra-data: true; }' but required in type '{ yy: string; direction?: number; }'.
+               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(j: { "extra-data": string; }): Element', gave the following error.
+!!! error TS2769:     Type 'true' is not assignable to type 'string'.
+!!! error TS2769:   Overload 2 of 2, '(n: { yy: string; direction?: number; }): Element', gave the following error.
+!!! error TS2769:     Property 'yy' is missing in type '{ extra-data: true; }' but required in type '{ yy: string; direction?: number; }'.
+!!! related TS6500 tests/cases/conformance/jsx/file.tsx:21:38: The expected type comes from property 'extra-data' which is declared here on type 'IntrinsicAttributes & { "extra-data": string; }'
 !!! related TS2728 tests/cases/conformance/jsx/file.tsx:22:38: 'yy' is declared here.
     const d2 = <TestingOneThing yy="hello" direction="left" />
-                                           ~~~~~~~~~
-!!! error TS2322: Type 'string' is not assignable to type 'number'.
+               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(j: { "extra-data": string; }): Element', gave the following error.
+!!! error TS2769:     Type '{ yy: string; direction: string; }' is not assignable to type 'IntrinsicAttributes & { "extra-data": string; }'.
+!!! error TS2769:       Property 'yy' does not exist on type 'IntrinsicAttributes & { "extra-data": string; }'.
+!!! error TS2769:   Overload 2 of 2, '(n: { yy: string; direction?: number; }): Element', gave the following error.
+!!! error TS2769:     Type 'string' is not assignable to type 'number'.
 !!! related TS6500 tests/cases/conformance/jsx/file.tsx:22:50: The expected type comes from property 'direction' which is declared here on type 'IntrinsicAttributes & { yy: string; direction?: number; }'
     
     declare function TestingOptional(a: {y1?: string, y2?: number}): JSX.Element;
@@ -71,19 +166,51 @@ tests/cases/conformance/jsx/file.tsx(36,29): error TS2322: Type 'string' is not
     
     // Error
     const e1 = <TestingOptional y1 y3="hello"/>
-                                   ~~
-!!! error TS2322: Type 'string' is not assignable to type 'boolean'.
+               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 3, '(a: { y1?: string; y2?: number; }): Element', gave the following error.
+!!! error TS2769:     Type 'true' is not assignable to type 'string'.
+!!! error TS2769:   Overload 2 of 3, '(a: { y1?: string; y2?: number; children: Element; }): Element', gave the following error.
+!!! error TS2769:     Type 'true' is not assignable to type 'string'.
+!!! error TS2769:   Overload 3 of 3, '(a: { y1: boolean; y2?: number; y3: boolean; }): Element', gave the following error.
+!!! error TS2769:     Type 'string' is not assignable to type 'boolean'.
+!!! related TS6500 tests/cases/conformance/jsx/file.tsx:28:38: The expected type comes from property 'y1' which is declared here on type 'IntrinsicAttributes & { y1?: string; y2?: number; }'
+!!! related TS6500 tests/cases/conformance/jsx/file.tsx:29:38: The expected type comes from property 'y1' which is declared here on type 'IntrinsicAttributes & { y1?: string; y2?: number; children: Element; }'
 !!! related TS6500 tests/cases/conformance/jsx/file.tsx:30:64: The expected type comes from property 'y3' which is declared here on type 'IntrinsicAttributes & { y1: boolean; y2?: number; y3: boolean; }'
     const e2 = <TestingOptional y1="hello" y2={1000} y3 />
-                                ~~
-!!! error TS2322: Type 'string' is not assignable to type 'boolean'.
+               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 3, '(a: { y1?: string; y2?: number; }): Element', gave the following error.
+!!! error TS2769:     Type '{ y1: string; y2: number; y3: true; }' is not assignable to type 'IntrinsicAttributes & { y1?: string; y2?: number; }'.
+!!! error TS2769:       Property 'y3' does not exist on type 'IntrinsicAttributes & { y1?: string; y2?: number; }'.
+!!! error TS2769:   Overload 2 of 3, '(a: { y1?: string; y2?: number; children: Element; }): Element', gave the following error.
+!!! error TS2769:     Type '{ y1: string; y2: number; y3: true; }' is not assignable to type 'IntrinsicAttributes & { y1?: string; y2?: number; children: Element; }'.
+!!! error TS2769:       Property 'y3' does not exist on type 'IntrinsicAttributes & { y1?: string; y2?: number; children: Element; }'.
+!!! error TS2769:   Overload 3 of 3, '(a: { y1: boolean; y2?: number; y3: boolean; }): Element', gave the following error.
+!!! error TS2769:     Type 'string' is not assignable to type 'boolean'.
 !!! related TS6500 tests/cases/conformance/jsx/file.tsx:30:38: The expected type comes from property 'y1' which is declared here on type 'IntrinsicAttributes & { y1: boolean; y2?: number; y3: boolean; }'
     const e3 = <TestingOptional y1="hello" y2={1000} children="hi" />
-                                ~~
-!!! error TS2322: Type 'string' is not assignable to type 'boolean'.
+               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 3, '(a: { y1?: string; y2?: number; }): Element', gave the following error.
+!!! error TS2769:     Type '{ y1: string; y2: number; children: string; }' is not assignable to type 'IntrinsicAttributes & { y1?: string; y2?: number; }'.
+!!! error TS2769:       Property 'children' does not exist on type 'IntrinsicAttributes & { y1?: string; y2?: number; }'.
+!!! error TS2769:   Overload 2 of 3, '(a: { y1?: string; y2?: number; children: Element; }): Element', gave the following error.
+!!! error TS2769:     Type 'string' is not assignable to type 'Element'.
+!!! error TS2769:   Overload 3 of 3, '(a: { y1: boolean; y2?: number; y3: boolean; }): Element', gave the following error.
+!!! error TS2769:     Type 'string' is not assignable to type 'boolean'.
+!!! related TS6500 tests/cases/conformance/jsx/file.tsx:29:64: The expected type comes from property 'children' which is declared here on type 'IntrinsicAttributes & { y1?: string; y2?: number; children: Element; }'
 !!! related TS6500 tests/cases/conformance/jsx/file.tsx:30:38: The expected type comes from property 'y1' which is declared here on type 'IntrinsicAttributes & { y1: boolean; y2?: number; y3: boolean; }'
     const e4 = <TestingOptional y1="hello" y2={1000}>Hi</TestingOptional>
-                                ~~
-!!! error TS2322: Type 'string' is not assignable to type 'boolean'.
+               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 3, '(a: { y1?: string; y2?: number; }): Element', gave the following error.
+!!! error TS2769:     Type '{ children: string; y1: string; y2: number; }' is not assignable to type 'IntrinsicAttributes & { y1?: string; y2?: number; }'.
+!!! error TS2769:       Property 'children' does not exist on type 'IntrinsicAttributes & { y1?: string; y2?: number; }'.
+!!! error TS2769:   Overload 2 of 3, '(a: { y1?: string; y2?: number; children: Element; }): Element', gave the following error.
+!!! error TS2769:     'TestingOptional' components don't accept text as child elements. Text in JSX has the type 'string', but the expected type of 'children' is 'Element'.
+!!! error TS2769:   Overload 3 of 3, '(a: { y1: boolean; y2?: number; y3: boolean; }): Element', gave the following error.
+!!! error TS2769:     Type 'string' is not assignable to type 'boolean'.
+!!! related TS6500 tests/cases/conformance/jsx/file.tsx:29:64: The expected type comes from property 'children' which is declared here on type 'IntrinsicAttributes & { y1?: string; y2?: number; children: Element; }'
 !!! related TS6500 tests/cases/conformance/jsx/file.tsx:30:38: The expected type comes from property 'y1' which is declared here on type 'IntrinsicAttributes & { y1: boolean; y2?: number; y3: boolean; }'
     

tests/baselines/reference/tsxStatelessFunctionComponentOverload5.errors.txt

@@ -1,8 +1,34 @@
-tests/cases/conformance/jsx/file.tsx(48,13): error TS2322: Type '{ children: string; to: string; onClick: (e: any) => void; }' is not assignable to type 'IntrinsicAttributes & HyphenProps'.
-  Property 'to' does not exist on type 'IntrinsicAttributes & HyphenProps'.
-tests/cases/conformance/jsx/file.tsx(54,51): error TS2322: Type 'number' is not assignable to type 'string'.
-tests/cases/conformance/jsx/file.tsx(55,68): error TS2322: Type 'true' is not assignable to type 'string'.
-tests/cases/conformance/jsx/file.tsx(56,24): error TS2322: Type 'true' is not assignable to type 'string'.
+tests/cases/conformance/jsx/file.tsx(48,12): error TS2769: No overload matches this call.
+  Overload 1 of 3, '(buttonProps: ButtonProps): Element', gave the following error.
+    Type '{ children: string; to: string; onClick: (e: MouseEvent<any>) => void; }' is not assignable to type 'IntrinsicAttributes & ButtonProps'.
+      Property 'to' does not exist on type 'IntrinsicAttributes & ButtonProps'.
+  Overload 2 of 3, '(linkProps: LinkProps): Element', gave the following error.
+    Type '{ children: string; to: string; onClick: (e: MouseEvent<any>) => void; }' is not assignable to type 'IntrinsicAttributes & LinkProps'.
+      Property 'onClick' does not exist on type 'IntrinsicAttributes & LinkProps'.
+  Overload 3 of 3, '(hyphenProps: HyphenProps): Element', gave the following error.
+    Type '{ children: string; to: string; onClick: (e: MouseEvent<any>) => void; }' is not assignable to type 'IntrinsicAttributes & HyphenProps'.
+      Property 'to' does not exist on type 'IntrinsicAttributes & HyphenProps'.
+tests/cases/conformance/jsx/file.tsx(54,12): error TS2769: No overload matches this call.
+  Overload 1 of 3, '(buttonProps: ButtonProps): Element', gave the following error.
+    Type 'number' is not assignable to type 'string'.
+  Overload 2 of 3, '(linkProps: LinkProps): Element', gave the following error.
+    Type 'number' is not assignable to type 'string'.
+  Overload 3 of 3, '(hyphenProps: HyphenProps): Element', gave the following error.
+    Type 'number' is not assignable to type 'string'.
+tests/cases/conformance/jsx/file.tsx(55,12): error TS2769: No overload matches this call.
+  Overload 1 of 3, '(buttonProps: ButtonProps): Element', gave the following error.
+    Type 'true' is not assignable to type 'string'.
+  Overload 2 of 3, '(linkProps: LinkProps): Element', gave the following error.
+    Type 'true' is not assignable to type 'string'.
+  Overload 3 of 3, '(hyphenProps: HyphenProps): Element', gave the following error.
+    Type 'true' is not assignable to type 'string'.
+tests/cases/conformance/jsx/file.tsx(56,12): error TS2769: No overload matches this call.
+  Overload 1 of 3, '(buttonProps: ButtonProps): Element', gave the following error.
+    Property 'onClick' is missing in type '{ data-format: true; }' but required in type 'ButtonProps'.
+  Overload 2 of 3, '(linkProps: LinkProps): Element', gave the following error.
+    Property 'to' is missing in type '{ data-format: true; }' but required in type 'LinkProps'.
+  Overload 3 of 3, '(hyphenProps: HyphenProps): Element', gave the following error.
+    Type 'true' is not assignable to type 'string'.
 
 
 ==== tests/cases/conformance/jsx/file.tsx (4 errors) ====
@@ -54,23 +80,55 @@ tests/cases/conformance/jsx/file.tsx(56,24): error TS2322: Type 'true' is not as
     
     // Error
     const b0 = <MainButton to='/some/path' onClick={(e)=>{}}>GO</MainButton>;  // extra property;
-                ~~~~~~~~~~
-!!! error TS2322: Type '{ children: string; to: string; onClick: (e: any) => void; }' is not assignable to type 'IntrinsicAttributes & HyphenProps'.
-!!! error TS2322:   Property 'to' does not exist on type 'IntrinsicAttributes & HyphenProps'.
+               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 3, '(buttonProps: ButtonProps): Element', gave the following error.
+!!! error TS2769:     Type '{ children: string; to: string; onClick: (e: MouseEvent<any>) => void; }' is not assignable to type 'IntrinsicAttributes & ButtonProps'.
+!!! error TS2769:       Property 'to' does not exist on type 'IntrinsicAttributes & ButtonProps'.
+!!! error TS2769:   Overload 2 of 3, '(linkProps: LinkProps): Element', gave the following error.
+!!! error TS2769:     Type '{ children: string; to: string; onClick: (e: MouseEvent<any>) => void; }' is not assignable to type 'IntrinsicAttributes & LinkProps'.
+!!! error TS2769:       Property 'onClick' does not exist on type 'IntrinsicAttributes & LinkProps'.
+!!! error TS2769:   Overload 3 of 3, '(hyphenProps: HyphenProps): Element', gave the following error.
+!!! error TS2769:     Type '{ children: string; to: string; onClick: (e: MouseEvent<any>) => void; }' is not assignable to type 'IntrinsicAttributes & HyphenProps'.
+!!! error TS2769:       Property 'to' does not exist on type 'IntrinsicAttributes & HyphenProps'.
     const b1 = <MainButton onClick={(e: any)=> {}} {...obj0}>Hello world</MainButton>;  // extra property;
     const b2 = <MainButton {...{to: "10000"}} {...obj2} />;  // extra property
     const b3 = <MainButton {...{to: "10000"}} {...{onClick: (k) => {}}} />;  // extra property
     const b4 = <MainButton {...obj3} to />;  // Should error because Incorrect type; but attributes are any so everything is allowed
     const b5 = <MainButton {...{ onClick(e: any) { } }} {...obj0} />;  // Spread retain method declaration (see GitHub #13365), so now there is an extra attributes
     const b6 = <MainButton {...{ onClick(e: any){} }} children={10} />;  // incorrect type for optional attribute
-                                                      ~~~~~~~~
-!!! error TS2322: Type 'number' is not assignable to type 'string'.
+               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 3, '(buttonProps: ButtonProps): Element', gave the following error.
+!!! error TS2769:     Type 'number' is not assignable to type 'string'.
+!!! error TS2769:   Overload 2 of 3, '(linkProps: LinkProps): Element', gave the following error.
+!!! error TS2769:     Type 'number' is not assignable to type 'string'.
+!!! error TS2769:   Overload 3 of 3, '(hyphenProps: HyphenProps): Element', gave the following error.
+!!! error TS2769:     Type 'number' is not assignable to type 'string'.
+!!! related TS6500 tests/cases/conformance/jsx/file.tsx:4:5: The expected type comes from property 'children' which is declared here on type 'IntrinsicAttributes & ButtonProps'
+!!! related TS6500 tests/cases/conformance/jsx/file.tsx:4:5: The expected type comes from property 'children' which is declared here on type 'IntrinsicAttributes & LinkProps'
 !!! related TS6500 tests/cases/conformance/jsx/file.tsx:4:5: The expected type comes from property 'children' which is declared here on type 'IntrinsicAttributes & HyphenProps'
     const b7 = <MainButton {...{ onClick(e: any){} }} children="hello" className />;  // incorrect type for optional attribute
-                                                                       ~~~~~~~~~
-!!! error TS2322: Type 'true' is not assignable to type 'string'.
+               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 3, '(buttonProps: ButtonProps): Element', gave the following error.
+!!! error TS2769:     Type 'true' is not assignable to type 'string'.
+!!! error TS2769:   Overload 2 of 3, '(linkProps: LinkProps): Element', gave the following error.
+!!! error TS2769:     Type 'true' is not assignable to type 'string'.
+!!! error TS2769:   Overload 3 of 3, '(hyphenProps: HyphenProps): Element', gave the following error.
+!!! error TS2769:     Type 'true' is not assignable to type 'string'.
+!!! related TS6500 tests/cases/conformance/jsx/file.tsx:5:5: The expected type comes from property 'className' which is declared here on type 'IntrinsicAttributes & ButtonProps'
+!!! related TS6500 tests/cases/conformance/jsx/file.tsx:5:5: The expected type comes from property 'className' which is declared here on type 'IntrinsicAttributes & LinkProps'
 !!! related TS6500 tests/cases/conformance/jsx/file.tsx:5:5: The expected type comes from property 'className' which is declared here on type 'IntrinsicAttributes & HyphenProps'
     const b8 = <MainButton data-format />;  // incorrect type for specified hyphanated name
-                           ~~~~~~~~~~~
-!!! error TS2322: Type 'true' is not assignable to type 'string'.
+               ~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 3, '(buttonProps: ButtonProps): Element', gave the following error.
+!!! error TS2769:     Property 'onClick' is missing in type '{ data-format: true; }' but required in type 'ButtonProps'.
+!!! error TS2769:   Overload 2 of 3, '(linkProps: LinkProps): Element', gave the following error.
+!!! error TS2769:     Property 'to' is missing in type '{ data-format: true; }' but required in type 'LinkProps'.
+!!! error TS2769:   Overload 3 of 3, '(hyphenProps: HyphenProps): Element', gave the following error.
+!!! error TS2769:     Type 'true' is not assignable to type 'string'.
+!!! related TS2728 tests/cases/conformance/jsx/file.tsx:9:5: 'onClick' is declared here.
+!!! related TS2728 tests/cases/conformance/jsx/file.tsx:13:5: 'to' is declared here.
 !!! related TS6500 tests/cases/conformance/jsx/file.tsx:17:5: The expected type comes from property 'data-format' which is declared here on type 'IntrinsicAttributes & HyphenProps'

tests/baselines/reference/tsxStatelessFunctionComponentOverload5.types

@@ -113,9 +113,9 @@ const b0 = <MainButton to='/some/path' onClick={(e)=>{}}>GO</MainButton>;  // ex
 ><MainButton to='/some/path' onClick={(e)=>{}}>GO</MainButton> : JSX.Element
 >MainButton : { (buttonProps: ButtonProps): JSX.Element; (linkProps: LinkProps): JSX.Element; (hyphenProps: HyphenProps): JSX.Element; }
 >to : string
->onClick : (e: any) => void
->(e)=>{} : (e: any) => void
->e : any
+>onClick : (e: React.MouseEvent<any>) => void
+>(e)=>{} : (e: React.MouseEvent<any>) => void
+>e : React.MouseEvent<any>
 >MainButton : { (buttonProps: ButtonProps): JSX.Element; (linkProps: LinkProps): JSX.Element; (hyphenProps: HyphenProps): JSX.Element; }
 
 const b1 = <MainButton onClick={(e: any)=> {}} {...obj0}>Hello world</MainButton>;  // extra property;

tests/baselines/reference/tsxStatelessFunctionComponentsWithTypeArguments4.errors.txt

@@ -1,6 +1,20 @@
-tests/cases/conformance/jsx/file.tsx(9,15): error TS2741: Property 'b' is missing in type '{ a: number; }' but required in type '{ b: unknown; a: number; }'.
-tests/cases/conformance/jsx/file.tsx(10,15): error TS2322: Type 'T & { ignore-prop: true; }' is not assignable to type 'IntrinsicAttributes & { b: unknown; a: unknown; }'.
-  Property 'a' is missing in type '{ b: number; } & { ignore-prop: true; }' but required in type '{ b: unknown; a: unknown; }'.
+tests/cases/conformance/jsx/file.tsx(9,14): error TS2769: No overload matches this call.
+  Overload 1 of 3, '(): Element', gave the following error.
+    Type '{ a: number; }' is not assignable to type 'IntrinsicAttributes'.
+      Property 'a' does not exist on type 'IntrinsicAttributes'.
+  Overload 2 of 3, '(attr: { b: unknown; a: string; "ignore-prop": boolean; }): Element', gave the following error.
+    Type 'number' is not assignable to type 'string'.
+  Overload 3 of 3, '(attr: { b: unknown; a: number; }): Element', gave the following error.
+    Property 'b' is missing in type '{ a: number; }' but required in type '{ b: unknown; a: number; }'.
+tests/cases/conformance/jsx/file.tsx(10,14): error TS2769: No overload matches this call.
+  Overload 1 of 3, '(): Element', gave the following error.
+    Type 'T & { ignore-prop: true; }' has no properties in common with type 'IntrinsicAttributes'.
+  Overload 2 of 3, '(attr: { b: unknown; a: string; "ignore-prop": boolean; }): Element', gave the following error.
+    Type 'T & { ignore-prop: true; }' is not assignable to type 'IntrinsicAttributes & { b: unknown; a: string; "ignore-prop": boolean; }'.
+      Property 'a' is missing in type '{ b: number; } & { ignore-prop: true; }' but required in type '{ b: unknown; a: string; "ignore-prop": boolean; }'.
+  Overload 3 of 3, '(attr: { b: unknown; a: unknown; }): Element', gave the following error.
+    Type 'T & { ignore-prop: true; }' is not assignable to type 'IntrinsicAttributes & { b: unknown; a: unknown; }'.
+      Property 'a' is missing in type '{ b: number; } & { ignore-prop: true; }' but required in type '{ b: unknown; a: unknown; }'.
 
 
 ==== tests/cases/conformance/jsx/file.tsx (2 errors) ====
@@ -13,12 +27,28 @@ tests/cases/conformance/jsx/file.tsx(10,15): error TS2322: Type 'T & { ignore-pr
     // Error
     function Baz<T extends {b: number}, U extends {a: boolean, b:string}>(arg1: T, arg2: U) {
         let a0 = <OverloadComponent a={arg1.b}/>
-                  ~~~~~~~~~~~~~~~~~
-!!! error TS2741: Property 'b' is missing in type '{ a: number; }' but required in type '{ b: unknown; a: number; }'.
+                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 3, '(): Element', gave the following error.
+!!! error TS2769:     Type '{ a: number; }' is not assignable to type 'IntrinsicAttributes'.
+!!! error TS2769:       Property 'a' does not exist on type 'IntrinsicAttributes'.
+!!! error TS2769:   Overload 2 of 3, '(attr: { b: unknown; a: string; "ignore-prop": boolean; }): Element', gave the following error.
+!!! error TS2769:     Type 'number' is not assignable to type 'string'.
+!!! error TS2769:   Overload 3 of 3, '(attr: { b: unknown; a: number; }): Element', gave the following error.
+!!! error TS2769:     Property 'b' is missing in type '{ a: number; }' but required in type '{ b: unknown; a: number; }'.
+!!! related TS6500 tests/cases/conformance/jsx/file.tsx:4:52: The expected type comes from property 'a' which is declared here on type 'IntrinsicAttributes & { b: unknown; a: string; "ignore-prop": boolean; }'
 !!! related TS2728 tests/cases/conformance/jsx/file.tsx:5:49: 'b' is declared here.
         let a2 = <OverloadComponent {...arg1} ignore-prop />  // missing a
-                  ~~~~~~~~~~~~~~~~~
-!!! error TS2322: Type 'T & { ignore-prop: true; }' is not assignable to type 'IntrinsicAttributes & { b: unknown; a: unknown; }'.
-!!! error TS2322:   Property 'a' is missing in type '{ b: number; } & { ignore-prop: true; }' but required in type '{ b: unknown; a: unknown; }'.
+                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 3, '(): Element', gave the following error.
+!!! error TS2769:     Type 'T & { ignore-prop: true; }' has no properties in common with type 'IntrinsicAttributes'.
+!!! error TS2769:   Overload 2 of 3, '(attr: { b: unknown; a: string; "ignore-prop": boolean; }): Element', gave the following error.
+!!! error TS2769:     Type 'T & { ignore-prop: true; }' is not assignable to type 'IntrinsicAttributes & { b: unknown; a: string; "ignore-prop": boolean; }'.
+!!! error TS2769:       Property 'a' is missing in type '{ b: number; } & { ignore-prop: true; }' but required in type '{ b: unknown; a: string; "ignore-prop": boolean; }'.
+!!! error TS2769:   Overload 3 of 3, '(attr: { b: unknown; a: unknown; }): Element', gave the following error.
+!!! error TS2769:     Type 'T & { ignore-prop: true; }' is not assignable to type 'IntrinsicAttributes & { b: unknown; a: unknown; }'.
+!!! error TS2769:       Property 'a' is missing in type '{ b: number; } & { ignore-prop: true; }' but required in type '{ b: unknown; a: unknown; }'.
+!!! related TS2728 tests/cases/conformance/jsx/file.tsx:4:52: 'a' is declared here.
 !!! related TS2728 tests/cases/conformance/jsx/file.tsx:5:55: 'a' is declared here.
     }

tests/baselines/reference/underscoreTest1.errors.txt

@@ -1,5 +1,11 @@
-tests/cases/compiler/underscoreTest1_underscoreTests.ts(26,7): error TS2345: Argument of type '(string | number | boolean)[]' is not assignable to parameter of type 'Dictionary<unknown>'.
-  Index signature is missing in type '(string | number | boolean)[]'.
+tests/cases/compiler/underscoreTest1_underscoreTests.ts(26,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(list: (string | number | boolean)[], iterator?: Iterator_<string | number | boolean, boolean>, context?: any): boolean', gave the following error.
+    Argument of type '<T>(value: T) => T' is not assignable to parameter of type 'Iterator_<string | number | boolean, boolean>'.
+      Type 'string | number | boolean' is not assignable to type 'boolean'.
+        Type 'string' is not assignable to type 'boolean'.
+  Overload 2 of 2, '(list: Dictionary<unknown>, iterator?: Iterator_<unknown, boolean>, context?: any): boolean', gave the following error.
+    Argument of type '(string | number | boolean)[]' is not assignable to parameter of type 'Dictionary<unknown>'.
+      Index signature is missing in type '(string | number | boolean)[]'.
 
 
 ==== tests/cases/compiler/underscoreTest1_underscoreTests.ts (1 errors) ====
@@ -29,9 +35,15 @@ tests/cases/compiler/underscoreTest1_underscoreTests.ts(26,7): error TS2345: Arg
     var odds = _.reject([1, 2, 3, 4, 5, 6], (num) => num % 2 == 0);
     
     _.all([true, 1, null, 'yes'], _.identity);
-          ~~~~~~~~~~~~~~~~~~~~~~
-!!! error TS2345: Argument of type '(string | number | boolean)[]' is not assignable to parameter of type 'Dictionary<unknown>'.
-!!! error TS2345:   Index signature is missing in type '(string | number | boolean)[]'.
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(list: (string | number | boolean)[], iterator?: Iterator_<string | number | boolean, boolean>, context?: any): boolean', gave the following error.
+!!! error TS2769:     Argument of type '<T>(value: T) => T' is not assignable to parameter of type 'Iterator_<string | number | boolean, boolean>'.
+!!! error TS2769:       Type 'string | number | boolean' is not assignable to type 'boolean'.
+!!! error TS2769:         Type 'string' is not assignable to type 'boolean'.
+!!! error TS2769:   Overload 2 of 2, '(list: Dictionary<unknown>, iterator?: Iterator_<unknown, boolean>, context?: any): boolean', gave the following error.
+!!! error TS2769:     Argument of type '(string | number | boolean)[]' is not assignable to parameter of type 'Dictionary<unknown>'.
+!!! error TS2769:       Index signature is missing in type '(string | number | boolean)[]'.
     
     _.any([null, 0, 'yes', false]);
     

tests/baselines/reference/unionTypeCallSignatures.errors.txt

@@ -1,6 +1,14 @@
 tests/cases/conformance/types/union/unionTypeCallSignatures.ts(9,43): error TS2345: Argument of type '"hello"' is not assignable to parameter of type 'number'.
-tests/cases/conformance/types/union/unionTypeCallSignatures.ts(10,29): error TS2345: Argument of type 'true' is not assignable to parameter of type 'string'.
-tests/cases/conformance/types/union/unionTypeCallSignatures.ts(15,29): error TS2345: Argument of type 'true' is not assignable to parameter of type 'string'.
+tests/cases/conformance/types/union/unionTypeCallSignatures.ts(10,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(a: number): number | Date', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'number'.
+  Overload 2 of 2, '(a: string): string | boolean', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'string'.
+tests/cases/conformance/types/union/unionTypeCallSignatures.ts(15,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(a: number): number | Date', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'number'.
+  Overload 2 of 2, '(a: string): string | boolean', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'string'.
 tests/cases/conformance/types/union/unionTypeCallSignatures.ts(16,1): error TS2554: Expected 1 arguments, but got 0.
 tests/cases/conformance/types/union/unionTypeCallSignatures.ts(19,32): error TS2345: Argument of type '10' is not assignable to parameter of type 'never'.
 tests/cases/conformance/types/union/unionTypeCallSignatures.ts(20,32): error TS2345: Argument of type '"hello"' is not assignable to parameter of type 'never'.
@@ -40,15 +48,23 @@ tests/cases/conformance/types/union/unionTypeCallSignatures.ts(73,12): error TS2
                                               ~~~~~~~
 !!! error TS2345: Argument of type '"hello"' is not assignable to parameter of type 'number'.
     unionOfDifferentReturnType1(true); // error in type of parameter
-                                ~~~~
-!!! error TS2345: Argument of type 'true' is not assignable to parameter of type 'string'.
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(a: number): number | Date', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'number'.
+!!! error TS2769:   Overload 2 of 2, '(a: string): string | boolean', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'string'.
     
     var unionOfDifferentReturnType1: { (a: number): number; (a: string): string; } | { (a: number): Date; (a: string): boolean; };
     numOrDate = unionOfDifferentReturnType1(10);
     strOrBoolean = unionOfDifferentReturnType1("hello");
     unionOfDifferentReturnType1(true); // error in type of parameter
-                                ~~~~
-!!! error TS2345: Argument of type 'true' is not assignable to parameter of type 'string'.
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(a: number): number | Date', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'number'.
+!!! error TS2769:   Overload 2 of 2, '(a: string): string | boolean', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'string'.
     unionOfDifferentReturnType1(); // error missing parameter
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 !!! error TS2554: Expected 1 arguments, but got 0.

tests/baselines/reference/unionTypeConstructSignatures.errors.txt

@@ -1,6 +1,14 @@
 tests/cases/conformance/types/union/unionTypeConstructSignatures.ts(9,47): error TS2345: Argument of type '"hello"' is not assignable to parameter of type 'number'.
-tests/cases/conformance/types/union/unionTypeConstructSignatures.ts(10,33): error TS2345: Argument of type 'true' is not assignable to parameter of type 'string'.
-tests/cases/conformance/types/union/unionTypeConstructSignatures.ts(15,33): error TS2345: Argument of type 'true' is not assignable to parameter of type 'string'.
+tests/cases/conformance/types/union/unionTypeConstructSignatures.ts(10,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(a: number): number | Date', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'number'.
+  Overload 2 of 2, '(a: string): string | boolean', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'string'.
+tests/cases/conformance/types/union/unionTypeConstructSignatures.ts(15,1): error TS2769: No overload matches this call.
+  Overload 1 of 2, '(a: number): number | Date', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'number'.
+  Overload 2 of 2, '(a: string): string | boolean', gave the following error.
+    Argument of type 'true' is not assignable to parameter of type 'string'.
 tests/cases/conformance/types/union/unionTypeConstructSignatures.ts(16,1): error TS2554: Expected 1 arguments, but got 0.
 tests/cases/conformance/types/union/unionTypeConstructSignatures.ts(19,36): error TS2345: Argument of type '10' is not assignable to parameter of type 'never'.
 tests/cases/conformance/types/union/unionTypeConstructSignatures.ts(20,36): error TS2345: Argument of type '"hello"' is not assignable to parameter of type 'never'.
@@ -39,15 +47,23 @@ tests/cases/conformance/types/union/unionTypeConstructSignatures.ts(70,12): erro
                                                   ~~~~~~~
 !!! error TS2345: Argument of type '"hello"' is not assignable to parameter of type 'number'.
     new unionOfDifferentReturnType1(true); // error in type of parameter
-                                    ~~~~
-!!! error TS2345: Argument of type 'true' is not assignable to parameter of type 'string'.
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(a: number): number | Date', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'number'.
+!!! error TS2769:   Overload 2 of 2, '(a: string): string | boolean', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'string'.
     
     var unionOfDifferentReturnType1: { new (a: number): number; new (a: string): string; } | { new (a: number): Date; new (a: string): boolean; };
     numOrDate = new unionOfDifferentReturnType1(10);
     strOrBoolean = new unionOfDifferentReturnType1("hello");
     new unionOfDifferentReturnType1(true); // error in type of parameter
-                                    ~~~~
-!!! error TS2345: Argument of type 'true' is not assignable to parameter of type 'string'.
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2769: No overload matches this call.
+!!! error TS2769:   Overload 1 of 2, '(a: number): number | Date', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'number'.
+!!! error TS2769:   Overload 2 of 2, '(a: string): string | boolean', gave the following error.
+!!! error TS2769:     Argument of type 'true' is not assignable to parameter of type 'string'.
     new unionOfDifferentReturnType1(); // error missing parameter
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 !!! error TS2554: Expected 1 arguments, but got 0.