Fixes #35735: Avoids listing missing properties for types with only call/construct signatures (#40973)

* Fixes #35735

* fixes #35735

* PR feedback

Co-authored-by: Wesley Wigham <wewigham@microsoft.com>

src/compiler/checker.ts

@@ -19996,7 +19996,7 @@ namespace ts {
                 const requireOptionalProperties = (relation === subtypeRelation || relation === strictSubtypeRelation) && !isObjectLiteralType(source) && !isEmptyArrayLiteralType(source) && !isTupleType(source);
                 const unmatchedProperty = getUnmatchedProperty(source, target, requireOptionalProperties, /*matchDiscriminantProperties*/ false);
                 if (unmatchedProperty) {
-                    if (reportErrors) {
+                    if (reportErrors && shouldReportUnmatchedPropertyError(source, target)) {
                         reportUnmatchedProperty(source, target, unmatchedProperty, requireOptionalProperties);
                     }
                     return Ternary.False;
@@ -20154,6 +20154,20 @@ namespace ts {
                 return result;
             }
 
+            function shouldReportUnmatchedPropertyError(source: Type, target: Type): boolean {
+                const typeCallSignatures = getSignaturesOfStructuredType(source, SignatureKind.Call);
+                const typeConstructSignatures = getSignaturesOfStructuredType(source, SignatureKind.Construct);
+                const typeProperties = getPropertiesOfObjectType(source);
+                if ((typeCallSignatures.length || typeConstructSignatures.length) && !typeProperties.length) {
+                    if ((getSignaturesOfType(target, SignatureKind.Call).length && typeCallSignatures.length) ||
+                        (getSignaturesOfType(target, SignatureKind.Construct).length && typeConstructSignatures.length)) {
+                        return true; // target has similar signature kinds to source, still focus on the unmatched property
+                    }
+                    return false;
+                }
+                return true;
+            }
+
             function reportIncompatibleCallSignatureReturn(siga: Signature, sigb: Signature) {
                 if (siga.parameters.length === 0 && sigb.parameters.length === 0) {
                     return (source: Type, target: Type) => reportIncompatibleError(Diagnostics.Call_signatures_with_no_arguments_have_incompatible_return_types_0_and_1, typeToString(source), typeToString(target));

tests/baselines/reference/arrayAssignmentTest1.errors.txt

@@ -20,7 +20,7 @@ tests/cases/compiler/arrayAssignmentTest1.ts(76,1): error TS2322: Type 'C1[]' is
   Property 'CM3M1' is missing in type 'C1' but required in type 'C3'.
 tests/cases/compiler/arrayAssignmentTest1.ts(77,1): error TS2322: Type 'I1[]' is not assignable to type 'C3[]'.
   Property 'CM3M1' is missing in type 'I1' but required in type 'C3'.
-tests/cases/compiler/arrayAssignmentTest1.ts(79,1): error TS2740: Type '() => C1' is missing the following properties from type 'any[]': pop, push, concat, join, and 15 more.
+tests/cases/compiler/arrayAssignmentTest1.ts(79,1): error TS2322: Type '() => C1' is not assignable to type 'any[]'.
 tests/cases/compiler/arrayAssignmentTest1.ts(80,1): error TS2740: Type '{ one: number; }' is missing the following properties from type 'any[]': length, pop, push, concat, and 16 more.
 tests/cases/compiler/arrayAssignmentTest1.ts(82,1): error TS2740: Type 'C1' is missing the following properties from type 'any[]': length, pop, push, concat, and 16 more.
 tests/cases/compiler/arrayAssignmentTest1.ts(83,1): error TS2740: Type 'C2' is missing the following properties from type 'any[]': length, pop, push, concat, and 16 more.
@@ -152,7 +152,7 @@ tests/cases/compiler/arrayAssignmentTest1.ts(85,1): error TS2740: Type 'I1' is m
     
     arr_any = f1; // should be an error - is
     ~~~~~~~
-!!! error TS2740: Type '() => C1' is missing the following properties from type 'any[]': pop, push, concat, join, and 15 more.
+!!! error TS2322: Type '() => C1' is not assignable to type 'any[]'.
     arr_any = o1; // should be an error - is
     ~~~~~~~
 !!! error TS2740: Type '{ one: number; }' is missing the following properties from type 'any[]': length, pop, push, concat, and 16 more.

tests/baselines/reference/arrayAssignmentTest2.errors.txt

@@ -4,8 +4,8 @@ tests/cases/compiler/arrayAssignmentTest2.ts(48,1): error TS2322: Type 'C1[]' is
   Property 'CM3M1' is missing in type 'C1' but required in type 'C3'.
 tests/cases/compiler/arrayAssignmentTest2.ts(49,1): error TS2322: Type 'I1[]' is not assignable to type 'C3[]'.
   Property 'CM3M1' is missing in type 'I1' but required in type 'C3'.
-tests/cases/compiler/arrayAssignmentTest2.ts(51,1): error TS2740: Type '() => C1' is missing the following properties from type 'any[]': pop, push, concat, join, and 15 more.
-tests/cases/compiler/arrayAssignmentTest2.ts(52,1): error TS2740: Type '() => any' is missing the following properties from type 'any[]': pop, push, concat, join, and 15 more.
+tests/cases/compiler/arrayAssignmentTest2.ts(51,1): error TS2322: Type '() => C1' is not assignable to type 'any[]'.
+tests/cases/compiler/arrayAssignmentTest2.ts(52,1): error TS2322: Type '() => any' is not assignable to type 'any[]'.
 tests/cases/compiler/arrayAssignmentTest2.ts(53,1): error TS2740: Type '{ one: number; }' is missing the following properties from type 'any[]': length, pop, push, concat, and 16 more.
 tests/cases/compiler/arrayAssignmentTest2.ts(55,1): error TS2740: Type 'C1' is missing the following properties from type 'any[]': length, pop, push, concat, and 16 more.
 tests/cases/compiler/arrayAssignmentTest2.ts(56,1): error TS2740: Type 'C2' is missing the following properties from type 'any[]': length, pop, push, concat, and 16 more.
@@ -78,10 +78,10 @@ tests/cases/compiler/arrayAssignmentTest2.ts(58,1): error TS2740: Type 'I1' is m
     
     arr_any = f1; // should be an error - is
     ~~~~~~~
-!!! error TS2740: Type '() => C1' is missing the following properties from type 'any[]': pop, push, concat, join, and 15 more.
+!!! error TS2322: Type '() => C1' is not assignable to type 'any[]'.
     arr_any = function () { return null;} // should be an error - is
     ~~~~~~~
-!!! error TS2740: Type '() => any' is missing the following properties from type 'any[]': pop, push, concat, join, and 15 more.
+!!! error TS2322: Type '() => any' is not assignable to type 'any[]'.
     arr_any = o1; // should be an error - is
     ~~~~~~~
 !!! error TS2740: Type '{ one: number; }' is missing the following properties from type 'any[]': length, pop, push, concat, and 16 more.

tests/baselines/reference/arrayAssignmentTest4.errors.txt

@@ -1,4 +1,4 @@
-tests/cases/compiler/arrayAssignmentTest4.ts(22,1): error TS2740: Type '() => any' is missing the following properties from type 'any[]': pop, push, concat, join, and 15 more.
+tests/cases/compiler/arrayAssignmentTest4.ts(22,1): error TS2322: Type '() => any' is not assignable to type 'any[]'.
 tests/cases/compiler/arrayAssignmentTest4.ts(23,1): error TS2740: Type 'C3' is missing the following properties from type 'any[]': length, pop, push, concat, and 16 more.
 
 
@@ -26,7 +26,7 @@ tests/cases/compiler/arrayAssignmentTest4.ts(23,1): error TS2740: Type 'C3' is m
     
     arr_any = function () { return null;} // should be an error - is
     ~~~~~~~
-!!! error TS2740: Type '() => any' is missing the following properties from type 'any[]': pop, push, concat, join, and 15 more.
+!!! error TS2322: Type '() => any' is not assignable to type 'any[]'.
     arr_any = c3; // should be an error - is
     ~~~~~~~
 !!! error TS2740: Type 'C3' is missing the following properties from type 'any[]': length, pop, push, concat, and 16 more.

tests/baselines/reference/assignLambdaToNominalSubtypeOfFunction.errors.txt

@@ -1,7 +1,5 @@
 tests/cases/compiler/assignLambdaToNominalSubtypeOfFunction.ts(7,4): error TS2345: Argument of type '(a: any, b: any) => boolean' is not assignable to parameter of type 'IResultCallback'.
-  Property 'x' is missing in type '(a: any, b: any) => boolean' but required in type 'IResultCallback'.
 tests/cases/compiler/assignLambdaToNominalSubtypeOfFunction.ts(8,4): error TS2345: Argument of type '(a: any, b: any) => boolean' is not assignable to parameter of type 'IResultCallback'.
-  Property 'x' is missing in type '(a: any, b: any) => boolean' but required in type 'IResultCallback'.
 
 
 ==== tests/cases/compiler/assignLambdaToNominalSubtypeOfFunction.ts (2 errors) ====
@@ -14,11 +12,7 @@ tests/cases/compiler/assignLambdaToNominalSubtypeOfFunction.ts(8,4): error TS234
     fn((a, b) => true);
        ~~~~~~~~~~~~~~
 !!! error TS2345: Argument of type '(a: any, b: any) => boolean' is not assignable to parameter of type 'IResultCallback'.
-!!! error TS2345:   Property 'x' is missing in type '(a: any, b: any) => boolean' but required in type 'IResultCallback'.
-!!! related TS2728 tests/cases/compiler/assignLambdaToNominalSubtypeOfFunction.ts:2:5: 'x' is declared here.
     fn(function (a, b) { return true; })
        ~~~~~~~~
 !!! error TS2345: Argument of type '(a: any, b: any) => boolean' is not assignable to parameter of type 'IResultCallback'.
-!!! error TS2345:   Property 'x' is missing in type '(a: any, b: any) => boolean' but required in type 'IResultCallback'.
-!!! related TS2728 tests/cases/compiler/assignLambdaToNominalSubtypeOfFunction.ts:2:5: 'x' is declared here.
     

tests/baselines/reference/assignmentCompatWithCallSignatures2.errors.txt

@@ -1,7 +1,7 @@
-tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts(31,1): error TS2741: Property 'f' is missing in type '() => number' but required in type 'T'.
-tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts(32,1): error TS2741: Property 'f' is missing in type '(x: number) => string' but required in type 'T'.
-tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts(33,1): error TS2741: Property 'f' is missing in type '() => number' but required in type '{ f(x: number): void; }'.
-tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts(34,1): error TS2741: Property 'f' is missing in type '(x: number) => string' but required in type '{ f(x: number): void; }'.
+tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts(31,1): error TS2322: Type '() => number' is not assignable to type 'T'.
+tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts(32,1): error TS2322: Type '(x: number) => string' is not assignable to type 'T'.
+tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts(33,1): error TS2322: Type '() => number' is not assignable to type '{ f(x: number): void; }'.
+tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts(34,1): error TS2322: Type '(x: number) => string' is not assignable to type '{ f(x: number): void; }'.
 tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts(42,1): error TS2322: Type 'S2' is not assignable to type 'T'.
   Types of property 'f' are incompatible.
     Type '(x: string) => void' is not assignable to type '(x: number) => void'.
@@ -12,8 +12,8 @@ tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignme
     Type '(x: string) => void' is not assignable to type '(x: number) => void'.
       Types of parameters 'x' and 'x' are incompatible.
         Type 'number' is not assignable to type 'string'.
-tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts(44,1): error TS2741: Property 'f' is missing in type '(x: string) => number' but required in type 'T'.
-tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts(45,1): error TS2741: Property 'f' is missing in type '(x: string) => string' but required in type 'T'.
+tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts(44,1): error TS2322: Type '(x: string) => number' is not assignable to type 'T'.
+tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts(45,1): error TS2322: Type '(x: string) => string' is not assignable to type 'T'.
 tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts(46,1): error TS2322: Type 'S2' is not assignable to type '{ f(x: number): void; }'.
   Types of property 'f' are incompatible.
     Type '(x: string) => void' is not assignable to type '(x: number) => void'.
@@ -24,8 +24,8 @@ tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignme
     Type '(x: string) => void' is not assignable to type '(x: number) => void'.
       Types of parameters 'x' and 'x' are incompatible.
         Type 'number' is not assignable to type 'string'.
-tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts(48,1): error TS2741: Property 'f' is missing in type '(x: string) => number' but required in type '{ f(x: number): void; }'.
-tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts(49,1): error TS2741: Property 'f' is missing in type '(x: string) => string' but required in type '{ f(x: number): void; }'.
+tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts(48,1): error TS2322: Type '(x: string) => number' is not assignable to type '{ f(x: number): void; }'.
+tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts(49,1): error TS2322: Type '(x: string) => string' is not assignable to type '{ f(x: number): void; }'.
 
 
 ==== tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts (12 errors) ====
@@ -61,20 +61,16 @@ tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignme
     // errors
     t = () => 1;
     ~
-!!! error TS2741: Property 'f' is missing in type '() => number' but required in type 'T'.
-!!! related TS2728 tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts:4:5: 'f' is declared here.
+!!! error TS2322: Type '() => number' is not assignable to type 'T'.
     t = function (x: number) { return ''; }
     ~
-!!! error TS2741: Property 'f' is missing in type '(x: number) => string' but required in type 'T'.
-!!! related TS2728 tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts:4:5: 'f' is declared here.
+!!! error TS2322: Type '(x: number) => string' is not assignable to type 'T'.
     a = () => 1;
     ~
-!!! error TS2741: Property 'f' is missing in type '() => number' but required in type '{ f(x: number): void; }'.
-!!! related TS2728 tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts:7:10: 'f' is declared here.
+!!! error TS2322: Type '() => number' is not assignable to type '{ f(x: number): void; }'.
     a = function (x: number) { return ''; }
     ~
-!!! error TS2741: Property 'f' is missing in type '(x: number) => string' but required in type '{ f(x: number): void; }'.
-!!! related TS2728 tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts:7:10: 'f' is declared here.
+!!! error TS2322: Type '(x: number) => string' is not assignable to type '{ f(x: number): void; }'.
     
     interface S2 {
         f(x: string): void;
@@ -98,12 +94,10 @@ tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignme
 !!! error TS2322:         Type 'number' is not assignable to type 'string'.
     t = (x: string) => 1;
     ~
-!!! error TS2741: Property 'f' is missing in type '(x: string) => number' but required in type 'T'.
-!!! related TS2728 tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts:4:5: 'f' is declared here.
+!!! error TS2322: Type '(x: string) => number' is not assignable to type 'T'.
     t = function (x: string) { return ''; }
     ~
-!!! error TS2741: Property 'f' is missing in type '(x: string) => string' but required in type 'T'.
-!!! related TS2728 tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts:4:5: 'f' is declared here.
+!!! error TS2322: Type '(x: string) => string' is not assignable to type 'T'.
     a = s2;
     ~
 !!! error TS2322: Type 'S2' is not assignable to type '{ f(x: number): void; }'.
@@ -120,10 +114,8 @@ tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignme
 !!! error TS2322:         Type 'number' is not assignable to type 'string'.
     a = (x: string) => 1;
     ~
-!!! error TS2741: Property 'f' is missing in type '(x: string) => number' but required in type '{ f(x: number): void; }'.
-!!! related TS2728 tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts:7:10: 'f' is declared here.
+!!! error TS2322: Type '(x: string) => number' is not assignable to type '{ f(x: number): void; }'.
     a = function (x: string) { return ''; }
     ~
-!!! error TS2741: Property 'f' is missing in type '(x: string) => string' but required in type '{ f(x: number): void; }'.
-!!! related TS2728 tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures2.ts:7:10: 'f' is declared here.
+!!! error TS2322: Type '(x: string) => string' is not assignable to type '{ f(x: number): void; }'.
     

tests/baselines/reference/assignmentCompatWithConstructSignatures2.errors.txt

@@ -1,7 +1,7 @@
-tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts(23,1): error TS2741: Property 'f' is missing in type '() => number' but required in type 'T'.
-tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts(24,1): error TS2741: Property 'f' is missing in type '(x: number) => string' but required in type 'T'.
-tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts(25,1): error TS2741: Property 'f' is missing in type '() => number' but required in type '{ f: new (x: number) => void; }'.
-tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts(26,1): error TS2741: Property 'f' is missing in type '(x: number) => string' but required in type '{ f: new (x: number) => void; }'.
+tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts(23,1): error TS2322: Type '() => number' is not assignable to type 'T'.
+tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts(24,1): error TS2322: Type '(x: number) => string' is not assignable to type 'T'.
+tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts(25,1): error TS2322: Type '() => number' is not assignable to type '{ f: new (x: number) => void; }'.
+tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts(26,1): error TS2322: Type '(x: number) => string' is not assignable to type '{ f: new (x: number) => void; }'.
 tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts(34,1): error TS2322: Type 'S2' is not assignable to type 'T'.
   Types of property 'f' are incompatible.
     Type '(x: string) => void' is not assignable to type 'new (x: number) => void'.
@@ -10,8 +10,8 @@ tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignme
   Types of property 'f' are incompatible.
     Type '(x: string) => void' is not assignable to type 'new (x: number) => void'.
       Type '(x: string) => void' provides no match for the signature 'new (x: number): void'.
-tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts(36,1): error TS2741: Property 'f' is missing in type '(x: string) => number' but required in type 'T'.
-tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts(37,1): error TS2741: Property 'f' is missing in type '(x: string) => string' but required in type 'T'.
+tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts(36,1): error TS2322: Type '(x: string) => number' is not assignable to type 'T'.
+tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts(37,1): error TS2322: Type '(x: string) => string' is not assignable to type 'T'.
 tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts(38,1): error TS2322: Type 'S2' is not assignable to type '{ f: new (x: number) => void; }'.
   Types of property 'f' are incompatible.
     Type '(x: string) => void' is not assignable to type 'new (x: number) => void'.
@@ -20,8 +20,8 @@ tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignme
   Types of property 'f' are incompatible.
     Type '(x: string) => void' is not assignable to type 'new (x: number) => void'.
       Type '(x: string) => void' provides no match for the signature 'new (x: number): void'.
-tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts(40,1): error TS2741: Property 'f' is missing in type '(x: string) => number' but required in type '{ f: new (x: number) => void; }'.
-tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts(41,1): error TS2741: Property 'f' is missing in type '(x: string) => string' but required in type '{ f: new (x: number) => void; }'.
+tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts(40,1): error TS2322: Type '(x: string) => number' is not assignable to type '{ f: new (x: number) => void; }'.
+tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts(41,1): error TS2322: Type '(x: string) => string' is not assignable to type '{ f: new (x: number) => void; }'.
 
 
 ==== tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts (12 errors) ====
@@ -49,20 +49,16 @@ tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignme
     // errors
     t = () => 1;
     ~
-!!! error TS2741: Property 'f' is missing in type '() => number' but required in type 'T'.
-!!! related TS2728 tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts:4:5: 'f' is declared here.
+!!! error TS2322: Type '() => number' is not assignable to type 'T'.
     t = function (x: number) { return ''; }
     ~
-!!! error TS2741: Property 'f' is missing in type '(x: number) => string' but required in type 'T'.
-!!! related TS2728 tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts:4:5: 'f' is declared here.
+!!! error TS2322: Type '(x: number) => string' is not assignable to type 'T'.
     a = () => 1;
     ~
-!!! error TS2741: Property 'f' is missing in type '() => number' but required in type '{ f: new (x: number) => void; }'.
-!!! related TS2728 tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts:7:10: 'f' is declared here.
+!!! error TS2322: Type '() => number' is not assignable to type '{ f: new (x: number) => void; }'.
     a = function (x: number) { return ''; }
     ~
-!!! error TS2741: Property 'f' is missing in type '(x: number) => string' but required in type '{ f: new (x: number) => void; }'.
-!!! related TS2728 tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts:7:10: 'f' is declared here.
+!!! error TS2322: Type '(x: number) => string' is not assignable to type '{ f: new (x: number) => void; }'.
     
     interface S2 {
         f(x: string): void;
@@ -84,12 +80,10 @@ tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignme
 !!! error TS2322:       Type '(x: string) => void' provides no match for the signature 'new (x: number): void'.
     t = (x: string) => 1;
     ~
-!!! error TS2741: Property 'f' is missing in type '(x: string) => number' but required in type 'T'.
-!!! related TS2728 tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts:4:5: 'f' is declared here.
+!!! error TS2322: Type '(x: string) => number' is not assignable to type 'T'.
     t = function (x: string) { return ''; }
     ~
-!!! error TS2741: Property 'f' is missing in type '(x: string) => string' but required in type 'T'.
-!!! related TS2728 tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts:4:5: 'f' is declared here.
+!!! error TS2322: Type '(x: string) => string' is not assignable to type 'T'.
     a = s2;
     ~
 !!! error TS2322: Type 'S2' is not assignable to type '{ f: new (x: number) => void; }'.
@@ -104,10 +98,8 @@ tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignme
 !!! error TS2322:       Type '(x: string) => void' provides no match for the signature 'new (x: number): void'.
     a = (x: string) => 1;
     ~
-!!! error TS2741: Property 'f' is missing in type '(x: string) => number' but required in type '{ f: new (x: number) => void; }'.
-!!! related TS2728 tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts:7:10: 'f' is declared here.
+!!! error TS2322: Type '(x: string) => number' is not assignable to type '{ f: new (x: number) => void; }'.
     a = function (x: string) { return ''; }
     ~
-!!! error TS2741: Property 'f' is missing in type '(x: string) => string' but required in type '{ f: new (x: number) => void; }'.
-!!! related TS2728 tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithConstructSignatures2.ts:7:10: 'f' is declared here.
+!!! error TS2322: Type '(x: string) => string' is not assignable to type '{ f: new (x: number) => void; }'.
     

tests/baselines/reference/avoidListingPropertiesForTypesWithOnlyCallOrConstructSignatures.errors.txt

@@ -0,0 +1,15 @@
+tests/cases/compiler/avoidListingPropertiesForTypesWithOnlyCallOrConstructSignatures.ts(7,20): error TS2322: Type '() => Dog' is not assignable to type 'Dog'.
+
+
+==== tests/cases/compiler/avoidListingPropertiesForTypesWithOnlyCallOrConstructSignatures.ts (1 errors) ====
+    interface Dog {
+        barkable: true
+    }
+    
+    declare function getRover(): Dog
+        
+    export let x:Dog = getRover;
+                       ~~~~~~~~
+!!! error TS2322: Type '() => Dog' is not assignable to type 'Dog'.
+!!! related TS6212 tests/cases/compiler/avoidListingPropertiesForTypesWithOnlyCallOrConstructSignatures.ts:7:20: Did you mean to call this expression?
+    // export let x: Dog = getRover; 

tests/baselines/reference/avoidListingPropertiesForTypesWithOnlyCallOrConstructSignatures.js

@@ -0,0 +1,16 @@
+//// [avoidListingPropertiesForTypesWithOnlyCallOrConstructSignatures.ts]
+interface Dog {
+    barkable: true
+}
+
+declare function getRover(): Dog
+    
+export let x:Dog = getRover;
+// export let x: Dog = getRover; 
+
+//// [avoidListingPropertiesForTypesWithOnlyCallOrConstructSignatures.js]
+"use strict";
+exports.__esModule = true;
+exports.x = void 0;
+exports.x = getRover;
+// export let x: Dog = getRover; 

tests/baselines/reference/avoidListingPropertiesForTypesWithOnlyCallOrConstructSignatures.symbols

@@ -0,0 +1,18 @@
+=== tests/cases/compiler/avoidListingPropertiesForTypesWithOnlyCallOrConstructSignatures.ts ===
+interface Dog {
+>Dog : Symbol(Dog, Decl(avoidListingPropertiesForTypesWithOnlyCallOrConstructSignatures.ts, 0, 0))
+
+    barkable: true
+>barkable : Symbol(Dog.barkable, Decl(avoidListingPropertiesForTypesWithOnlyCallOrConstructSignatures.ts, 0, 15))
+}
+
+declare function getRover(): Dog
+>getRover : Symbol(getRover, Decl(avoidListingPropertiesForTypesWithOnlyCallOrConstructSignatures.ts, 2, 1))
+>Dog : Symbol(Dog, Decl(avoidListingPropertiesForTypesWithOnlyCallOrConstructSignatures.ts, 0, 0))
+    
+export let x:Dog = getRover;
+>x : Symbol(x, Decl(avoidListingPropertiesForTypesWithOnlyCallOrConstructSignatures.ts, 6, 10))
+>Dog : Symbol(Dog, Decl(avoidListingPropertiesForTypesWithOnlyCallOrConstructSignatures.ts, 0, 0))
+>getRover : Symbol(getRover, Decl(avoidListingPropertiesForTypesWithOnlyCallOrConstructSignatures.ts, 2, 1))
+
+// export let x: Dog = getRover; 

tests/baselines/reference/avoidListingPropertiesForTypesWithOnlyCallOrConstructSignatures.types

@@ -0,0 +1,15 @@
+=== tests/cases/compiler/avoidListingPropertiesForTypesWithOnlyCallOrConstructSignatures.ts ===
+interface Dog {
+    barkable: true
+>barkable : true
+>true : true
+}
+
+declare function getRover(): Dog
+>getRover : () => Dog
+    
+export let x:Dog = getRover;
+>x : Dog
+>getRover : () => Dog
+
+// export let x: Dog = getRover; 

tests/baselines/reference/checkJsdocTypeTag6.errors.txt

@@ -1,5 +1,5 @@
 tests/cases/conformance/jsdoc/test.js(1,12): error TS8030: The type of a function declaration must match the function's signature.
-tests/cases/conformance/jsdoc/test.js(7,5): error TS2741: Property 'prop' is missing in type '(prop: any) => void' but required in type '{ prop: string; }'.
+tests/cases/conformance/jsdoc/test.js(7,5): error TS2322: Type '(prop: any) => void' is not assignable to type '{ prop: string; }'.
 tests/cases/conformance/jsdoc/test.js(10,12): error TS8030: The type of a function declaration must match the function's signature.
 
 
@@ -14,8 +14,7 @@ tests/cases/conformance/jsdoc/test.js(10,12): error TS8030: The type of a functi
     /** @type {{ prop: string }} */
     var g = function (prop) {
         ~
-!!! error TS2741: Property 'prop' is missing in type '(prop: any) => void' but required in type '{ prop: string; }'.
-!!! related TS2728 tests/cases/conformance/jsdoc/test.js:6:14: 'prop' is declared here.
+!!! error TS2322: Type '(prop: any) => void' is not assignable to type '{ prop: string; }'.
     }
     
     /** @type {(a: number) => number} */

tests/baselines/reference/crashInsourcePropertyIsRelatableToTargetProperty.errors.txt

@@ -1,4 +1,4 @@
-tests/cases/compiler/crashInsourcePropertyIsRelatableToTargetProperty.ts(9,5): error TS2741: Property 'x' is missing in type '(x: "hi", items: string[]) => typeof foo' but required in type 'C'.
+tests/cases/compiler/crashInsourcePropertyIsRelatableToTargetProperty.ts(9,5): error TS2322: Type '(x: "hi", items: string[]) => typeof foo' is not assignable to type 'D'.
 
 
 ==== tests/cases/compiler/crashInsourcePropertyIsRelatableToTargetProperty.ts (1 errors) ====
@@ -12,6 +12,5 @@ tests/cases/compiler/crashInsourcePropertyIsRelatableToTargetProperty.ts(9,5): e
     }
     var a: D = foo("hi", []);
         ~
-!!! error TS2741: Property 'x' is missing in type '(x: "hi", items: string[]) => typeof foo' but required in type 'C'.
-!!! related TS2728 tests/cases/compiler/crashInsourcePropertyIsRelatableToTargetProperty.ts:2:13: 'x' is declared here.
+!!! error TS2322: Type '(x: "hi", items: string[]) => typeof foo' is not assignable to type 'D'.
     

tests/baselines/reference/functionToFunctionWithPropError.errors.txt

@@ -0,0 +1,12 @@
+tests/cases/compiler/functionToFunctionWithPropError.ts(4,1): error TS2741: Property 'prop' is missing in type '() => string' but required in type '{ (): string; prop: number; }'.
+
+
+==== tests/cases/compiler/functionToFunctionWithPropError.ts (1 errors) ====
+    declare let x: { (): string; prop: number };
+    declare let y: { (): string; }
+    
+    x = y;
+    ~
+!!! error TS2741: Property 'prop' is missing in type '() => string' but required in type '{ (): string; prop: number; }'.
+!!! related TS2728 tests/cases/compiler/functionToFunctionWithPropError.ts:1:30: 'prop' is declared here.
+    y = x;

tests/baselines/reference/functionToFunctionWithPropError.js

@@ -0,0 +1,10 @@
+//// [functionToFunctionWithPropError.ts]
+declare let x: { (): string; prop: number };
+declare let y: { (): string; }
+
+x = y;
+y = x;
+
+//// [functionToFunctionWithPropError.js]
+x = y;
+y = x;

tests/baselines/reference/functionToFunctionWithPropError.symbols

@@ -0,0 +1,16 @@
+=== tests/cases/compiler/functionToFunctionWithPropError.ts ===
+declare let x: { (): string; prop: number };
+>x : Symbol(x, Decl(functionToFunctionWithPropError.ts, 0, 11))
+>prop : Symbol(prop, Decl(functionToFunctionWithPropError.ts, 0, 28))
+
+declare let y: { (): string; }
+>y : Symbol(y, Decl(functionToFunctionWithPropError.ts, 1, 11))
+
+x = y;
+>x : Symbol(x, Decl(functionToFunctionWithPropError.ts, 0, 11))
+>y : Symbol(y, Decl(functionToFunctionWithPropError.ts, 1, 11))
+
+y = x;
+>y : Symbol(y, Decl(functionToFunctionWithPropError.ts, 1, 11))
+>x : Symbol(x, Decl(functionToFunctionWithPropError.ts, 0, 11))
+

tests/baselines/reference/functionToFunctionWithPropError.types

@@ -0,0 +1,18 @@
+=== tests/cases/compiler/functionToFunctionWithPropError.ts ===
+declare let x: { (): string; prop: number };
+>x : { (): string; prop: number; }
+>prop : number
+
+declare let y: { (): string; }
+>y : () => string
+
+x = y;
+>x = y : () => string
+>x : { (): string; prop: number; }
+>y : () => string
+
+y = x;
+>y = x : { (): string; prop: number; }
+>y : () => string
+>x : { (): string; prop: number; }
+

tests/baselines/reference/intTypeCheck.errors.txt

@@ -6,7 +6,7 @@ tests/cases/compiler/intTypeCheck.ts(99,5): error TS2696: The 'Object' type is a
 tests/cases/compiler/intTypeCheck.ts(100,20): error TS2351: This expression is not constructable.
   Type 'i1' has no construct signatures.
 tests/cases/compiler/intTypeCheck.ts(101,5): error TS2739: Type 'Base' is missing the following properties from type 'i1': p, p3, p6
-tests/cases/compiler/intTypeCheck.ts(103,5): error TS2739: Type '() => void' is missing the following properties from type 'i1': p, p3, p6
+tests/cases/compiler/intTypeCheck.ts(103,5): error TS2322: Type '() => void' is not assignable to type 'i1'.
 tests/cases/compiler/intTypeCheck.ts(106,5): error TS2322: Type 'boolean' is not assignable to type 'i1'.
 tests/cases/compiler/intTypeCheck.ts(106,20): error TS1109: Expression expected.
 tests/cases/compiler/intTypeCheck.ts(106,21): error TS2693: 'i1' only refers to a type, but is being used as a value here.
@@ -52,7 +52,7 @@ tests/cases/compiler/intTypeCheck.ts(155,5): error TS2696: The 'Object' type is
 tests/cases/compiler/intTypeCheck.ts(156,21): error TS2351: This expression is not constructable.
   Type 'i5' has no construct signatures.
 tests/cases/compiler/intTypeCheck.ts(157,5): error TS2739: Type 'Base' is missing the following properties from type 'i5': p, p3, p6
-tests/cases/compiler/intTypeCheck.ts(159,5): error TS2739: Type '() => void' is missing the following properties from type 'i5': p, p3, p6
+tests/cases/compiler/intTypeCheck.ts(159,5): error TS2322: Type '() => void' is not assignable to type 'i5'.
 tests/cases/compiler/intTypeCheck.ts(162,5): error TS2322: Type 'boolean' is not assignable to type 'i5'.
 tests/cases/compiler/intTypeCheck.ts(162,21): error TS1109: Expression expected.
 tests/cases/compiler/intTypeCheck.ts(162,22): error TS2693: 'i5' only refers to a type, but is being used as a value here.
@@ -215,7 +215,7 @@ tests/cases/compiler/intTypeCheck.ts(205,21): error TS2351: This expression is n
     var obj5: i1 = null;
     var obj6: i1 = function () { };
         ~~~~
-!!! error TS2739: Type '() => void' is missing the following properties from type 'i1': p, p3, p6
+!!! error TS2322: Type '() => void' is not assignable to type 'i1'.
     //var obj7: i1 = function foo() { };
     var obj8: i1 = <i1> anyVar;
     var obj9: i1 = new <i1> anyVar;
@@ -347,7 +347,7 @@ tests/cases/compiler/intTypeCheck.ts(205,21): error TS2351: This expression is n
     var obj49: i5 = null;
     var obj50: i5 = function () { };
         ~~~~~
-!!! error TS2739: Type '() => void' is missing the following properties from type 'i5': p, p3, p6
+!!! error TS2322: Type '() => void' is not assignable to type 'i5'.
     //var obj51: i5 = function foo() { };
     var obj52: i5 = <i5> anyVar;
     var obj53: i5 = new <i5> anyVar;

tests/cases/compiler/avoidListingPropertiesForTypesWithOnlyCallOrConstructSignatures.ts

@@ -0,0 +1,8 @@
+interface Dog {
+    barkable: true
+}
+
+declare function getRover(): Dog
+    
+export let x:Dog = getRover;
+// export let x: Dog = getRover; 

tests/cases/compiler/functionToFunctionWithPropError.ts

@@ -0,0 +1,5 @@
+declare let x: { (): string; prop: number };
+declare let y: { (): string; }
+
+x = y;
+y = x;