Codegen: Do not subtract 0 in arguments to rest array loop

src/compiler/transformers/es2015.ts

@@ -1306,7 +1306,9 @@ namespace ts {
                             createAssignment(
                                 createElementAccess(
                                     expressionName,
-                                    createSubtract(temp, createLiteral(restIndex))
+                                    restIndex === 0
+                                        ? temp
+                                        : createSubtract(temp, createLiteral(restIndex))
                                 ),
                                 createElementAccess(createIdentifier("arguments"), temp)
                             ),

tests/baselines/reference/accessorWithRestParam.js

@@ -13,7 +13,7 @@ var C = (function () {
         set: function () {
             var v = [];
             for (var _i = 0; _i < arguments.length; _i++) {
-                v[_i - 0] = arguments[_i];
+                v[_i] = arguments[_i];
             }
         },
         enumerable: true,
@@ -23,7 +23,7 @@ var C = (function () {
         set: function () {
             var v2 = [];
             for (var _i = 0; _i < arguments.length; _i++) {
-                v2[_i - 0] = arguments[_i];
+                v2[_i] = arguments[_i];
             }
         },
         enumerable: true,

tests/baselines/reference/assignmentCompatWithCallSignaturesWithRestParameters.js

@@ -52,14 +52,14 @@ a = function () { return 1; }; // ok, same number of required params
 a = function () {
     var args = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        args[_i - 0] = arguments[_i];
+        args[_i] = arguments[_i];
     }
     return 1;
 }; // ok, same number of required params
 a = function () {
     var args = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        args[_i - 0] = arguments[_i];
+        args[_i] = arguments[_i];
     }
     return 1;
 }; // error, type mismatch
@@ -72,7 +72,7 @@ a2 = function () { return 1; }; // ok, fewer required params
 a2 = function () {
     var args = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        args[_i - 0] = arguments[_i];
+        args[_i] = arguments[_i];
     }
     return 1;
 }; // ok, fewer required params

tests/baselines/reference/baseTypeAfterDerivedType.js

@@ -23,7 +23,7 @@ var Derived2 = (function () {
     Derived2.prototype.method = function () {
         var args = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            args[_i - 0] = arguments[_i];
+            args[_i] = arguments[_i];
         }
     };
     return Derived2;

tests/baselines/reference/checkSuperCallBeforeThisAccessing5.js

@@ -17,7 +17,7 @@ var Based = (function () {
     function Based() {
         var arg = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            arg[_i - 0] = arguments[_i];
+            arg[_i] = arguments[_i];
         }
     }
     return Based;

tests/baselines/reference/checkSuperCallBeforeThisAccessing6.js

@@ -20,7 +20,7 @@ var Base = (function () {
     function Base() {
         var arg = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            arg[_i - 0] = arguments[_i];
+            arg[_i] = arguments[_i];
         }
     }
     return Base;

tests/baselines/reference/checkSuperCallBeforeThisAccessing8.js

@@ -20,7 +20,7 @@ var Base = (function () {
     function Base() {
         var arg = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            arg[_i - 0] = arguments[_i];
+            arg[_i] = arguments[_i];
         }
     }
     return Base;

tests/baselines/reference/collisionArgumentsArrowFunctions.js

@@ -37,7 +37,7 @@ var f1NoError = function (arguments) {
 var f2 = function () {
     var restParameters = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        restParameters[_i - 0] = arguments[_i];
+        restParameters[_i] = arguments[_i];
     }
     var arguments = 10; // No Error
 };

tests/baselines/reference/collisionArgumentsClassConstructor.js

@@ -118,7 +118,7 @@ var c2 = (function () {
     function c2() {
         var restParameters = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            restParameters[_i - 0] = arguments[_i];
+            restParameters[_i] = arguments[_i];
         }
         var arguments = 10; // no error
     }

tests/baselines/reference/collisionArgumentsClassMethod.js

@@ -94,7 +94,7 @@ var c3 = (function () {
     c3.prototype.foo = function () {
         var restParameters = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            restParameters[_i - 0] = arguments[_i];
+            restParameters[_i] = arguments[_i];
         }
         var arguments = 10; // no error
     };

tests/baselines/reference/collisionArgumentsFunction.js

@@ -66,7 +66,7 @@ function f1NoError(arguments) {
 function f3() {
     var restParameters = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        restParameters[_i - 0] = arguments[_i];
+        restParameters[_i] = arguments[_i];
     }
     var arguments = 10; // no error
 }

tests/baselines/reference/collisionArgumentsFunctionExpressions.js

@@ -56,7 +56,7 @@ function foo() {
     function f3() {
         var restParameters = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            restParameters[_i - 0] = arguments[_i];
+            restParameters[_i] = arguments[_i];
         }
         var arguments = 10; // no error
     }

tests/baselines/reference/collisionRestParameterArrowFunctions.js

@@ -27,7 +27,7 @@ var f1NoError = function (_i) {
 var f2 = function () {
     var restParameters = [];
     for (var _a = 0; _a < arguments.length; _a++) {
-        restParameters[_a - 0] = arguments[_a];
+        restParameters[_a] = arguments[_a];
     }
     var _i = 10; // No Error
 };

tests/baselines/reference/collisionRestParameterClassConstructor.js

@@ -88,7 +88,7 @@ var c2 = (function () {
     function c2() {
         var restParameters = [];
         for (var _a = 0; _a < arguments.length; _a++) {
-            restParameters[_a - 0] = arguments[_a];
+            restParameters[_a] = arguments[_a];
         }
         var _i = 10; // no error
     }

tests/baselines/reference/collisionRestParameterClassMethod.js

@@ -70,7 +70,7 @@ var c3 = (function () {
     c3.prototype.foo = function () {
         var restParameters = [];
         for (var _a = 0; _a < arguments.length; _a++) {
-            restParameters[_a - 0] = arguments[_a];
+            restParameters[_a] = arguments[_a];
         }
         var _i = 10; // no error
     };

tests/baselines/reference/collisionRestParameterFunction.js

@@ -48,7 +48,7 @@ function f1NoError(_i) {
 function f3() {
     var restParameters = [];
     for (var _a = 0; _a < arguments.length; _a++) {
-        restParameters[_a - 0] = arguments[_a];
+        restParameters[_a] = arguments[_a];
     }
     var _i = 10; // no error
 }

tests/baselines/reference/collisionRestParameterFunctionExpressions.js

@@ -39,7 +39,7 @@ function foo() {
     function f3() {
         var restParameters = [];
         for (var _a = 0; _a < arguments.length; _a++) {
-            restParameters[_a - 0] = arguments[_a];
+            restParameters[_a] = arguments[_a];
         }
         var _i = 10; // no error
     }

tests/baselines/reference/collisionRestParameterUnderscoreIUsage.js

@@ -14,7 +14,7 @@ var Foo = (function () {
     function Foo() {
         var args = [];
         for (var _a = 0; _a < arguments.length; _a++) {
-            args[_a - 0] = arguments[_a];
+            args[_a] = arguments[_a];
         }
         console.log(_i); // This should result in error
     }

tests/baselines/reference/constructorWithIncompleteTypeAnnotation.js

@@ -297,7 +297,7 @@ var TypeScriptAllInOne;
         Program.Main = function () {
             var args = [];
             for (var _i = 0; _i < arguments.length; _i++) {
-                args[_i - 0] = arguments[_i];
+                args[_i] = arguments[_i];
             }
             try {
                 var bfs = new BasicFeatures();

tests/baselines/reference/contextuallyTypedIife.js

@@ -57,21 +57,21 @@ let eleven = (o => o.a(11))({ a: function(n) { return n; } });
 (function () {
     var numbers = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        numbers[_i - 0] = arguments[_i];
+        numbers[_i] = arguments[_i];
     }
     return numbers.every(function (n) { return n > 0; });
 })(5, 6, 7);
 (function () {
     var mixed = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        mixed[_i - 0] = arguments[_i];
+        mixed[_i] = arguments[_i];
     }
     return mixed.every(function (n) { return !!n; });
 })(5, 'oops', 'oh no');
 (function () {
     var noNumbers = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        noNumbers[_i - 0] = arguments[_i];
+        noNumbers[_i] = arguments[_i];
     }
     return noNumbers.some(function (n) { return n > 0; });
 })();

tests/baselines/reference/contextuallyTypingRestParameters.js

@@ -11,7 +11,7 @@ var x: (...y: string[]) => void = function (.../*3*/y) {
 var x = function () {
     var y = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        y[_i - 0] = arguments[_i];
+        y[_i] = arguments[_i];
     }
     var t = y;
     var x2 = t; // This should be error

tests/baselines/reference/declFileRestParametersOfFunctionAndFunctionType.js

@@ -14,7 +14,7 @@ var f6 = () => { return [<any>10]; }
 function f1() {
     var args = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        args[_i - 0] = arguments[_i];
+        args[_i] = arguments[_i];
     }
 }
 function f2(x) { }

tests/baselines/reference/declarationEmitDestructuringOptionalBindingParametersInOverloads.js

@@ -13,13 +13,13 @@ function foo2(...rest: any[]) {
 function foo() {
     var rest = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        rest[_i - 0] = arguments[_i];
+        rest[_i] = arguments[_i];
     }
 }
 function foo2() {
     var rest = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        rest[_i - 0] = arguments[_i];
+        rest[_i] = arguments[_i];
     }
 }
 

tests/baselines/reference/defaultExportWithOverloads01.js

@@ -10,7 +10,7 @@ export default function f(...args: any[]) {
 function f() {
     var args = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        args[_i - 0] = arguments[_i];
+        args[_i] = arguments[_i];
     }
 }
 Object.defineProperty(exports, "__esModule", { value: true });

tests/baselines/reference/destructuringParameterDeclaration4.js

@@ -43,31 +43,31 @@ foo1(1, 2, "string", E1.a, E.b);  // Error
 function a0() {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        x[_i - 0] = arguments[_i];
+        x[_i] = arguments[_i];
     }
 } // Error, rest parameter must be array type
 function a1() {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        x[_i - 0] = arguments[_i];
+        x[_i] = arguments[_i];
     }
 }
 function a2() {
     var a = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        a[_i - 0] = arguments[_i];
+        a[_i] = arguments[_i];
     }
 } // Error, rest parameter must be array type
 function a3() {
     var b = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        b[_i - 0] = arguments[_i];
+        b[_i] = arguments[_i];
     }
 } // Error, can't be optional
 function a4() {
     var b = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        b[_i - 0] = arguments[_i];
+        b[_i] = arguments[_i];
     }
 } // Error, can't have initializer
 function a5(_a) {
@@ -86,7 +86,7 @@ var C = (function () {
     function C() {
         var temp = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            temp[_i - 0] = arguments[_i];
+            temp[_i] = arguments[_i];
         }
         this.temp = temp;
     } // Error, rest parameter can't have properties
@@ -96,7 +96,7 @@ var C = (function () {
 function foo1() {
     var a = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        a[_i - 0] = arguments[_i];
+        a[_i] = arguments[_i];
     }
 }
 foo1(1, 2, "string", E1.a, E.b); // Error

tests/baselines/reference/destructuringParameterDeclaration6.js

@@ -40,20 +40,20 @@ while (, )
 function a5() {
     var  = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        [_i - 0] = arguments[_i];
+        [_i] = arguments[_i];
     }
 }
 while () { }
 function a6() {
     var public = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        public[_i - 0] = arguments[_i];
+        public[_i] = arguments[_i];
     }
 }
 function a7() {
     var a = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        a[_i - 0] = arguments[_i];
+        a[_i] = arguments[_i];
     }
 }
 a({ "while": 1 });

tests/baselines/reference/detachedCommentAtStartOfLambdaFunction1.js

@@ -19,7 +19,7 @@ var TestFile = (function () {
         return function () {
             var x = [];
             for (var _i = 0; _i < arguments.length; _i++) {
-                x[_i - 0] = arguments[_i];
+                x[_i] = arguments[_i];
             }
             /// <summary>Test summary</summary>
             /// <param name="message" type="String" />

tests/baselines/reference/detachedCommentAtStartOfLambdaFunction2.js

@@ -23,7 +23,7 @@ var TestFile = (function () {
             /// <returns type="Function" />
             var x = [];
             for (var _i = 0; _i < arguments.length; _i++) {
-                x[_i - 0] = arguments[_i];
+                x[_i] = arguments[_i];
             }
             return message + _this.name;
         };

tests/baselines/reference/disallowLineTerminatorBeforeArrow.js

@@ -92,13 +92,13 @@ var f4 = function (x, y) {
 var f5 = function () {
     var rest = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        rest[_i - 0] = arguments[_i];
+        rest[_i] = arguments[_i];
     }
 };
 var f6 = function () {
     var rest = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        rest[_i - 0] = arguments[_i];
+        rest[_i] = arguments[_i];
     }
 };
 var f7 = function (x, y, z) {

tests/baselines/reference/emitDecoratorMetadata_restArgs.js

@@ -32,13 +32,13 @@ var A = (function () {
     function A() {
         var args = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            args[_i - 0] = arguments[_i];
+            args[_i] = arguments[_i];
         }
     }
     A.prototype.method = function () {
         var args = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            args[_i - 0] = arguments[_i];
+            args[_i] = arguments[_i];
         }
     };
     return A;
@@ -57,13 +57,13 @@ var B = (function () {
     function B() {
         var args = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            args[_i - 0] = arguments[_i];
+            args[_i] = arguments[_i];
         }
     }
     B.prototype.method = function () {
         var args = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            args[_i - 0] = arguments[_i];
+            args[_i] = arguments[_i];
         }
     };
     return B;

tests/baselines/reference/emitRestParametersFunction.js

@@ -6,7 +6,7 @@ function foo(x: number, y: string, ...rest) { }
 function bar() {
     var rest = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        rest[_i - 0] = arguments[_i];
+        rest[_i] = arguments[_i];
     }
 }
 function foo(x, y) {

tests/baselines/reference/emitRestParametersFunctionExpression.js

@@ -9,7 +9,7 @@ var funcExp3 = (function (...rest) { })()
 var funcExp = function () {
     var rest = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        rest[_i - 0] = arguments[_i];
+        rest[_i] = arguments[_i];
     }
 };
 var funcExp1 = function (X) {
@@ -21,12 +21,12 @@ var funcExp1 = function (X) {
 var funcExp2 = function () {
     var rest = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        rest[_i - 0] = arguments[_i];
+        rest[_i] = arguments[_i];
     }
 };
 var funcExp3 = (function () {
     var rest = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        rest[_i - 0] = arguments[_i];
+        rest[_i] = arguments[_i];
     }
 })();

tests/baselines/reference/emitRestParametersFunctionProperty.js

@@ -13,7 +13,7 @@ var obj2 = {
     func: function () {
         var rest = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            rest[_i - 0] = arguments[_i];
+            rest[_i] = arguments[_i];
         }
     }
 };

tests/baselines/reference/emitRestParametersMethod.js

@@ -24,7 +24,7 @@ var C = (function () {
     C.prototype.bar = function () {
         var rest = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            rest[_i - 0] = arguments[_i];
+            rest[_i] = arguments[_i];
         }
     };
     C.prototype.foo = function (x) {
@@ -39,13 +39,13 @@ var D = (function () {
     function D() {
         var rest = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            rest[_i - 0] = arguments[_i];
+            rest[_i] = arguments[_i];
         }
     }
     D.prototype.bar = function () {
         var rest = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            rest[_i - 0] = arguments[_i];
+            rest[_i] = arguments[_i];
         }
     };
     D.prototype.foo = function (x) {

tests/baselines/reference/emitSkipsThisWithRestParameter.js

@@ -11,7 +11,7 @@ function rebase(fn) {
     return function () {
         var args = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            args[_i - 0] = arguments[_i];
+            args[_i] = arguments[_i];
         }
         return fn.apply(this, [this].concat(args));
     };

tests/baselines/reference/es6ClassTest2.js

@@ -236,7 +236,7 @@ var SplatMonster = (function () {
     function SplatMonster() {
         var args = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            args[_i - 0] = arguments[_i];
+            args[_i] = arguments[_i];
         }
     }
     SplatMonster.prototype.roar = function (name) {

tests/baselines/reference/es6modulekindWithES5Target6.js

@@ -17,7 +17,7 @@ export function f1(d) {
 export function f2() {
     var arg = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        arg[_i - 0] = arguments[_i];
+        arg[_i] = arguments[_i];
     }
 }
 export default function f3(d) {

tests/baselines/reference/fatarrowfunctionsErrors.js

@@ -16,7 +16,7 @@ var x4= (...a: any[]) { };
 foo(function () {
     var Far = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        Far[_i - 0] = arguments[_i];
+        Far[_i] = arguments[_i];
     }
     return 0;
 });
@@ -36,6 +36,6 @@ var x3 = function (a) { };
 var x4 = function () {
     var a = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        a[_i - 0] = arguments[_i];
+        a[_i] = arguments[_i];
     }
 };

tests/baselines/reference/fatarrowfunctionsOptionalArgs.js

@@ -159,7 +159,7 @@ foo(
 (function () {
     var arg = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        arg[_i - 0] = arguments[_i];
+        arg[_i] = arguments[_i];
     }
     return 8;
 });
@@ -203,7 +203,7 @@ foo(
 (function () {
     var arg = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        arg[_i - 0] = arguments[_i];
+        arg[_i] = arguments[_i];
     }
     return 28;
 });
@@ -226,7 +226,7 @@ false ? function (arg) {
 false ? function () {
     var arg = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        arg[_i - 0] = arguments[_i];
+        arg[_i] = arguments[_i];
     }
     return 48;
 } : null;
@@ -247,7 +247,7 @@ false ? (function (arg) {
 false ? (function () {
     var arg = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        arg[_i - 0] = arguments[_i];
+        arg[_i] = arguments[_i];
     }
     return 58;
 }) : null;
@@ -268,7 +268,7 @@ false ? null : function (arg) {
 false ? null : function () {
     var arg = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        arg[_i - 0] = arguments[_i];
+        arg[_i] = arguments[_i];
     }
     return 68;
 };
@@ -294,7 +294,7 @@ false ? null : function () {
 (function () {
     var arg = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        arg[_i - 0] = arguments[_i];
+        arg[_i] = arguments[_i];
     }
     return 96;
 }) instanceof Function;
@@ -326,13 +326,13 @@ false ? null : function () {
 (function () {
     var arg = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        arg[_i - 0] = arguments[_i];
+        arg[_i] = arguments[_i];
     }
     return 0;
 }) + '' + (function () {
     var arg = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        arg[_i - 0] = arguments[_i];
+        arg[_i] = arguments[_i];
     }
     return 107;
 });
@@ -354,7 +354,7 @@ false ? null : function () {
 function foo() {
     var arg = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        arg[_i - 0] = arguments[_i];
+        arg[_i] = arguments[_i];
     }
 }
 foo(function (a) { return 110; }, (function (a) { return 111; }), function (a) {
@@ -371,7 +371,7 @@ foo(function (a) { return 110; }, (function (a) { return 111; }), function (a) {
 }, function () {
     var a = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        a[_i - 0] = arguments[_i];
+        a[_i] = arguments[_i];
     }
     return 119;
 }, function (a, b) {

tests/baselines/reference/fatarrowfunctionsOptionalArgsErrors1.js

@@ -12,21 +12,21 @@
 (function () {
     var arg = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        arg[_i - 0] = arguments[_i];
+        arg[_i] = arguments[_i];
     }
     return 102;
 });
 (function () {
     var arg = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        arg[_i - 0] = arguments[_i];
+        arg[_i] = arguments[_i];
     }
     return 103;
 });
 (function () {
     var arg = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        arg[_i - 0] = arguments[_i];
+        arg[_i] = arguments[_i];
     }
     return 104;
 });

tests/baselines/reference/fatarrowfunctionsOptionalArgsErrors3.js

@@ -6,7 +6,7 @@
 (function () {
     var  = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        [_i - 0] = arguments[_i];
+        [_i] = arguments[_i];
     }
     return 105;
 });

tests/baselines/reference/fatarrowfunctionsOptionalArgsErrors4.js

@@ -56,7 +56,7 @@ foo(function (a) { return 110; }, (function (a) { return 111; }), function (a) {
 }, function () {
     var a = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        a[_i - 0] = arguments[_i];
+        a[_i] = arguments[_i];
     }
     return 119;
 }, function (a, b) {

tests/baselines/reference/functionCall10.js

@@ -10,7 +10,7 @@ foo(1, 'bar');
 function foo() {
     var a = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        a[_i - 0] = arguments[_i];
+        a[_i] = arguments[_i];
     }
 }
 ;

tests/baselines/reference/functionOverloadsRecursiveGenericReturnType.js

@@ -28,7 +28,7 @@ var A = (function () {
 function Choice() {
     var v_args = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        v_args[_i - 0] = arguments[_i];
+        v_args[_i] = arguments[_i];
     }
     return new A();
 }

tests/baselines/reference/genericRestArgs.js

@@ -16,7 +16,7 @@ var a2Gc = makeArrayG<any[]>(1, ""); // error
 function makeArrayG() {
     var items = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        items[_i - 0] = arguments[_i];
+        items[_i] = arguments[_i];
     }
     return items;
 }

tests/baselines/reference/implicitAnyDeclareFunctionWithoutFormalType.js

@@ -22,7 +22,7 @@ function func2(a, b, c) { }
 function func3() {
     var args = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        args[_i - 0] = arguments[_i];
+        args[_i] = arguments[_i];
     }
 }
 ; // error at "args" 

tests/baselines/reference/inheritedConstructorWithRestParams.js

@@ -24,7 +24,7 @@ var Base = (function () {
     function Base() {
         var a = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            a[_i - 0] = arguments[_i];
+            a[_i] = arguments[_i];
         }
     }
     return Base;

tests/baselines/reference/newWithSpread.js

@@ -107,7 +107,7 @@ function f(x, y) {
 function f2() {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        x[_i - 0] = arguments[_i];
+        x[_i] = arguments[_i];
     }
 }
 var B = (function () {

tests/baselines/reference/newWithSpreadES5.js

@@ -106,7 +106,7 @@ function f(x, y) {
 function f2() {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        x[_i - 0] = arguments[_i];
+        x[_i] = arguments[_i];
     }
 }
 var B = (function () {

tests/baselines/reference/noImplicitAnyParametersInBareFunctions.js

@@ -59,7 +59,7 @@ function f5(x, y, z) { }
 function f6() {
     var r = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        r[_i - 0] = arguments[_i];
+        r[_i] = arguments[_i];
     }
 }
 // Implicit-'any'/'any[]' errors for x, r.
@@ -82,7 +82,7 @@ var f12 = function (x, y, z) { return ""; };
 var f13 = function () {
     var r = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        r[_i - 0] = arguments[_i];
+        r[_i] = arguments[_i];
     }
     return "";
 };

tests/baselines/reference/noImplicitAnyParametersInClass.js

@@ -107,7 +107,7 @@ var C = (function () {
         this.pub_f13 = function () {
             var r = [];
             for (var _i = 0; _i < arguments.length; _i++) {
-                r[_i - 0] = arguments[_i];
+                r[_i] = arguments[_i];
             }
             return "";
         };
@@ -131,7 +131,7 @@ var C = (function () {
         this.priv_f13 = function () {
             var r = [];
             for (var _i = 0; _i < arguments.length; _i++) {
-                r[_i - 0] = arguments[_i];
+                r[_i] = arguments[_i];
             }
             return "";
         };
@@ -158,7 +158,7 @@ var C = (function () {
     C.prototype.pub_f6 = function () {
         var r = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            r[_i - 0] = arguments[_i];
+            r[_i] = arguments[_i];
         }
     };
     // Implicit-'any'/'any[]' errors for x, r.
@@ -184,7 +184,7 @@ var C = (function () {
     C.prototype.priv_f6 = function () {
         var r = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            r[_i - 0] = arguments[_i];
+            r[_i] = arguments[_i];
         }
     };
     // Implicit-'any'/'any[]' errors for x, r.

tests/baselines/reference/noImplicitAnyParametersInModule.js

@@ -63,7 +63,7 @@ var M;
     function m_f6() {
         var r = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            r[_i - 0] = arguments[_i];
+            r[_i] = arguments[_i];
         }
     }
     // Implicit-'any'/'any[]' errors for x and r.
@@ -86,7 +86,7 @@ var M;
     var m_f13 = function () {
         var r = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            r[_i - 0] = arguments[_i];
+            r[_i] = arguments[_i];
         }
         return "";
     };

tests/baselines/reference/nonArrayRestArgs.js

@@ -8,7 +8,7 @@ function foo(...rest: number) { // error
 function foo() {
     var rest = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        rest[_i - 0] = arguments[_i];
+        rest[_i] = arguments[_i];
     }
     var x = rest[0];
     return x;

tests/baselines/reference/optionalBindingParametersInOverloads1.js

@@ -13,7 +13,7 @@ foo([false, 0, ""]);
 function foo() {
     var rest = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        rest[_i - 0] = arguments[_i];
+        rest[_i] = arguments[_i];
     }
 }
 foo(["", 0, false]);

tests/baselines/reference/optionalBindingParametersInOverloads2.js

@@ -13,7 +13,7 @@ foo({ x: false, y: 0, z: "" });
 function foo() {
     var rest = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        rest[_i - 0] = arguments[_i];
+        rest[_i] = arguments[_i];
     }
 }
 foo({ x: "", y: 0, z: false });

tests/baselines/reference/overloadGenericFunctionWithRestArgs.js

@@ -24,7 +24,7 @@ var A = (function () {
 function Choice() {
     var v_args = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        v_args[_i - 0] = arguments[_i];
+        v_args[_i] = arguments[_i];
     }
     return new A();
 }

tests/baselines/reference/parenthesizedContexualTyping2.js

@@ -45,7 +45,7 @@ var obj2: ObjType = ({ x: x => (x, undefined), y: y => (y, undefined) });
 function fun() {
     var rest = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        rest[_i - 0] = arguments[_i];
+        rest[_i] = arguments[_i];
     }
     return undefined;
 }

tests/baselines/reference/parser509668.js

@@ -10,7 +10,7 @@ var Foo3 = (function () {
     function Foo3() {
         var args = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            args[_i - 0] = arguments[_i];
+            args[_i] = arguments[_i];
         }
         this.args = args;
     }

tests/baselines/reference/parserMemberAccessorDeclaration18.js

@@ -11,7 +11,7 @@ var C = (function () {
         set: function () {
             var a = [];
             for (var _i = 0; _i < arguments.length; _i++) {
-                a[_i - 0] = arguments[_i];
+                a[_i] = arguments[_i];
             }
         },
         enumerable: true,

tests/baselines/reference/parserParameterList10.js

@@ -10,7 +10,7 @@ var C = (function () {
     C.prototype.foo = function () {
         var bar = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            bar[_i - 0] = arguments[_i];
+            bar[_i] = arguments[_i];
         }
     };
     return C;

tests/baselines/reference/parserParameterList11.js

@@ -5,7 +5,7 @@
 (function () {
     var arg = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        arg[_i - 0] = arguments[_i];
+        arg[_i] = arguments[_i];
     }
     return 102;
 });

tests/baselines/reference/parserParameterList9.js

@@ -10,7 +10,7 @@ var C = (function () {
     C.prototype.foo = function () {
         var bar = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            bar[_i - 0] = arguments[_i];
+            bar[_i] = arguments[_i];
         }
     };
     return C;

tests/baselines/reference/partiallyAnnotatedFunctionInferenceWithTypeParameter.js

@@ -63,7 +63,7 @@ test(function (t1) { });
 test(function () {
     var ts = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        ts[_i - 0] = arguments[_i];
+        ts[_i] = arguments[_i];
     }
 });
 // source function has rest arg

tests/baselines/reference/restArgAssignmentCompat.js

@@ -13,7 +13,7 @@ n([4], 'foo');
 function f() {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        x[_i - 0] = arguments[_i];
+        x[_i] = arguments[_i];
     }
     x.forEach(function (n, i) { return void ('item ' + i + ' = ' + n); });
 }

tests/baselines/reference/restArgMissingName.js

@@ -6,6 +6,6 @@ function sum (...) {}
 function sum() {
     var  = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        [_i - 0] = arguments[_i];
+        [_i] = arguments[_i];
     }
 }

tests/baselines/reference/restParamAsOptional.js

@@ -6,12 +6,12 @@ function f2(...x = []) { }
 function f() {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        x[_i - 0] = arguments[_i];
+        x[_i] = arguments[_i];
     }
 }
 function f2() {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        x[_i - 0] = arguments[_i];
+        x[_i] = arguments[_i];
     }
 }

tests/baselines/reference/restParamModifier2.js

@@ -8,7 +8,7 @@ var C = (function () {
     function C() {
         var rest = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            rest[_i - 0] = arguments[_i];
+            rest[_i] = arguments[_i];
         }
         this.rest = rest;
     }

tests/baselines/reference/restParameterAssignmentCompatibility.js

@@ -33,7 +33,7 @@ var T = (function () {
     T.prototype.m = function () {
         var p3 = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            p3[_i - 0] = arguments[_i];
+            p3[_i] = arguments[_i];
         }
     };
     return T;

tests/baselines/reference/restParameterNoTypeAnnotation.js

@@ -9,7 +9,7 @@ function foo(...rest) {
 function foo() {
     var rest = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        rest[_i - 0] = arguments[_i];
+        rest[_i] = arguments[_i];
     }
     var x = rest[0];
     return x;

tests/baselines/reference/restParameterWithoutAnnotationIsAnyArray.js

@@ -31,13 +31,13 @@ var b = {
 function foo() {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        x[_i - 0] = arguments[_i];
+        x[_i] = arguments[_i];
     }
 }
 var f = function foo() {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        x[_i - 0] = arguments[_i];
+        x[_i] = arguments[_i];
     }
 };
 var f2 = function () {
@@ -52,7 +52,7 @@ var C = (function () {
     C.prototype.foo = function () {
         var x = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            x[_i - 0] = arguments[_i];
+            x[_i] = arguments[_i];
         }
     };
     return C;
@@ -62,7 +62,7 @@ var b = {
     foo: function () {
         var x = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            x[_i - 0] = arguments[_i];
+            x[_i] = arguments[_i];
         }
     },
     a: function foo() {
@@ -74,7 +74,7 @@ var b = {
     b: function () {
         var x = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            x[_i - 0] = arguments[_i];
+            x[_i] = arguments[_i];
         }
     }
 };

tests/baselines/reference/restParametersOfNonArrayTypes.js

@@ -30,13 +30,13 @@ var b = {
 function foo() {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        x[_i - 0] = arguments[_i];
+        x[_i] = arguments[_i];
     }
 }
 var f = function foo() {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        x[_i - 0] = arguments[_i];
+        x[_i] = arguments[_i];
     }
 };
 var f2 = function () {
@@ -51,7 +51,7 @@ var C = (function () {
     C.prototype.foo = function () {
         var x = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            x[_i - 0] = arguments[_i];
+            x[_i] = arguments[_i];
         }
     };
     return C;
@@ -61,7 +61,7 @@ var b = {
     foo: function () {
         var x = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            x[_i - 0] = arguments[_i];
+            x[_i] = arguments[_i];
         }
     },
     a: function foo() {
@@ -73,7 +73,7 @@ var b = {
     b: function () {
         var x = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            x[_i - 0] = arguments[_i];
+            x[_i] = arguments[_i];
         }
     }
 };

tests/baselines/reference/restParametersOfNonArrayTypes2.js

@@ -62,13 +62,13 @@ var b2 = {
 function foo() {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        x[_i - 0] = arguments[_i];
+        x[_i] = arguments[_i];
     }
 }
 var f = function foo() {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        x[_i - 0] = arguments[_i];
+        x[_i] = arguments[_i];
     }
 };
 var f2 = function () {
@@ -83,7 +83,7 @@ var C = (function () {
     C.prototype.foo = function () {
         var x = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            x[_i - 0] = arguments[_i];
+            x[_i] = arguments[_i];
         }
     };
     return C;
@@ -93,7 +93,7 @@ var b = {
     foo: function () {
         var x = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            x[_i - 0] = arguments[_i];
+            x[_i] = arguments[_i];
         }
     },
     a: function foo() {
@@ -105,20 +105,20 @@ var b = {
     b: function () {
         var x = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            x[_i - 0] = arguments[_i];
+            x[_i] = arguments[_i];
         }
     }
 };
 function foo2() {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        x[_i - 0] = arguments[_i];
+        x[_i] = arguments[_i];
     }
 }
 var f3 = function foo() {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        x[_i - 0] = arguments[_i];
+        x[_i] = arguments[_i];
     }
 };
 var f4 = function () {
@@ -133,7 +133,7 @@ var C2 = (function () {
     C2.prototype.foo = function () {
         var x = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            x[_i - 0] = arguments[_i];
+            x[_i] = arguments[_i];
         }
     };
     return C2;
@@ -143,7 +143,7 @@ var b2 = {
     foo: function () {
         var x = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            x[_i - 0] = arguments[_i];
+            x[_i] = arguments[_i];
         }
     },
     a: function foo() {
@@ -155,7 +155,7 @@ var b2 = {
     b: function () {
         var x = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            x[_i - 0] = arguments[_i];
+            x[_i] = arguments[_i];
         }
     }
 };

tests/baselines/reference/restParametersWithArrayTypeAnnotations.js

@@ -57,13 +57,13 @@ var b2 = {
 function foo() {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        x[_i - 0] = arguments[_i];
+        x[_i] = arguments[_i];
     }
 }
 var f = function foo() {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        x[_i - 0] = arguments[_i];
+        x[_i] = arguments[_i];
     }
 };
 var f2 = function () {
@@ -78,7 +78,7 @@ var C = (function () {
     C.prototype.foo = function () {
         var x = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            x[_i - 0] = arguments[_i];
+            x[_i] = arguments[_i];
         }
     };
     return C;
@@ -88,7 +88,7 @@ var b = {
     foo: function () {
         var x = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            x[_i - 0] = arguments[_i];
+            x[_i] = arguments[_i];
         }
     },
     a: function foo() {
@@ -100,20 +100,20 @@ var b = {
     b: function () {
         var x = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            x[_i - 0] = arguments[_i];
+            x[_i] = arguments[_i];
         }
     }
 };
 function foo2() {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        x[_i - 0] = arguments[_i];
+        x[_i] = arguments[_i];
     }
 }
 var f3 = function foo() {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        x[_i - 0] = arguments[_i];
+        x[_i] = arguments[_i];
     }
 };
 var f4 = function () {
@@ -128,7 +128,7 @@ var C2 = (function () {
     C2.prototype.foo = function () {
         var x = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            x[_i - 0] = arguments[_i];
+            x[_i] = arguments[_i];
         }
     };
     return C2;
@@ -138,7 +138,7 @@ var b2 = {
     foo: function () {
         var x = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            x[_i - 0] = arguments[_i];
+            x[_i] = arguments[_i];
         }
     },
     a: function foo() {
@@ -150,7 +150,7 @@ var b2 = {
     b: function () {
         var x = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            x[_i - 0] = arguments[_i];
+            x[_i] = arguments[_i];
         }
     }
 };

tests/baselines/reference/restParamsWithNonRestParams.js

@@ -10,7 +10,7 @@ foo3(); // error but shouldn't be
 function foo() {
     var b = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        b[_i - 0] = arguments[_i];
+        b[_i] = arguments[_i];
     }
 }
 foo(); // ok

tests/baselines/reference/stringLiteralTypeIsSubtypeOfString.js

@@ -120,7 +120,7 @@ var C = (function () {
     C.prototype.concat = function () {
         var strings = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            strings[_i - 0] = arguments[_i];
+            strings[_i] = arguments[_i];
         }
         return null;
     };

tests/baselines/reference/stringLiteralTypesOverloads03.js

@@ -52,7 +52,7 @@ var helloOrWorld;
 function f() {
     var args = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        args[_i - 0] = arguments[_i];
+        args[_i] = arguments[_i];
     }
     return undefined;
 }
@@ -62,7 +62,7 @@ var fResult3 = f(helloOrWorld);
 function g() {
     var args = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        args[_i - 0] = arguments[_i];
+        args[_i] = arguments[_i];
     }
     return undefined;
 }

tests/baselines/reference/subtypingWithCallSignatures2.js

@@ -253,14 +253,14 @@ var r9b = [r9arg2, r9arg1];
 var r10arg1 = function () {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        x[_i - 0] = arguments[_i];
+        x[_i] = arguments[_i];
     }
     return x[0];
 };
 var r10arg2 = function () {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        x[_i - 0] = arguments[_i];
+        x[_i] = arguments[_i];
     }
     return null;
 };

tests/baselines/reference/subtypingWithCallSignatures3.js

@@ -170,14 +170,14 @@ var Errors;
     var r4arg = function () {
         var x = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            x[_i - 0] = arguments[_i];
+            x[_i] = arguments[_i];
         }
         return null;
     };
     var r4arg2 = function () {
         var x = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            x[_i - 0] = arguments[_i];
+            x[_i] = arguments[_i];
         }
         return null;
     };

tests/baselines/reference/taggedTemplateStringsHexadecimalEscapes.js

@@ -8,7 +8,7 @@ f `\x0D${ "Interrupted CRLF" }\x0A`;
 function f() {
     var args = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        args[_i - 0] = arguments[_i];
+        args[_i] = arguments[_i];
     }
 }
 (_a = ["\r", "\n"], _a.raw = ["\\x0D", "\\x0A"], f(_a, "Interrupted CRLF"));

tests/baselines/reference/taggedTemplateStringsPlainCharactersThatArePartsOfEscapes01.js

@@ -11,7 +11,7 @@ f `0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2028 2029 0085 t v f b r
 function f() {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        x[_i - 0] = arguments[_i];
+        x[_i] = arguments[_i];
     }
 }
 (_a = ["0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2028 2029 0085 t v f b r n"], _a.raw = ["0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2028 2029 0085 t v f b r n"], f(_a));

tests/baselines/reference/taggedTemplateStringsWithMultilineTemplate.js

@@ -11,7 +11,7 @@ f `
 function f() {
     var args = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        args[_i - 0] = arguments[_i];
+        args[_i] = arguments[_i];
     }
 }
 (_a = ["\n\n"], _a.raw = ["\n\\\n\n"], f(_a));

tests/baselines/reference/taggedTemplateStringsWithOverloadResolution1.js

@@ -26,7 +26,7 @@ var z = foo `${1}${2}${3}`;  // any (with error)
 function foo() {
     var stuff = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        stuff[_i - 0] = arguments[_i];
+        stuff[_i] = arguments[_i];
     }
     return undefined;
 }

tests/baselines/reference/taggedTemplateStringsWithOverloadResolution2.js

@@ -22,7 +22,7 @@ var d = foo2([], 1);
 function foo1() {
     var stuff = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        stuff[_i - 0] = arguments[_i];
+        stuff[_i] = arguments[_i];
     }
     return undefined;
 }
@@ -31,7 +31,7 @@ var b = foo1([], 1);
 function foo2() {
     var stuff = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        stuff[_i - 0] = arguments[_i];
+        stuff[_i] = arguments[_i];
     }
     return undefined;
 }

tests/baselines/reference/taggedTemplateStringsWithTypeErrorInFunctionExpressionsInSubstitutionExpression.js

@@ -10,7 +10,7 @@ foo `${function (x: number) { x = "bad"; } }`;
 function foo() {
     var rest = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        rest[_i - 0] = arguments[_i];
+        rest[_i] = arguments[_i];
     }
 }
 (_a = ["", ""], _a.raw = ["", ""], foo(_a, function (x) { x = "bad"; }));

tests/baselines/reference/taggedTemplateStringsWithUnicodeEscapes.js

@@ -8,7 +8,7 @@ f `'\u{1f4a9}'${ " should be converted to " }'\uD83D\uDCA9'`;
 function f() {
     var args = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        args[_i - 0] = arguments[_i];
+        args[_i] = arguments[_i];
     }
 }
 (_a = ["'\uD83D\uDCA9'", "'\uD83D\uDCA9'"], _a.raw = ["'\\u{1f4a9}'", "'\\uD83D\\uDCA9'"], f(_a, " should be converted to "));

tests/baselines/reference/taggedTemplateStringsWithWhitespaceEscapes.js

@@ -8,7 +8,7 @@ f `\t\n\v\f\r\\`;
 function f() {
     var args = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        args[_i - 0] = arguments[_i];
+        args[_i] = arguments[_i];
     }
 }
 (_a = ["\t\n\v\f\r\\"], _a.raw = ["\\t\\n\\v\\f\\r\\\\"], f(_a));

tests/baselines/reference/trailingCommasInFunctionParametersAndArguments.js

@@ -35,7 +35,7 @@ f1(1);
 function f2() {
     var args = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        args[_i - 0] = arguments[_i];
+        args[_i] = arguments[_i];
     }
 }
 f2.apply(void 0, []);

tests/baselines/reference/typeArgumentsWithStringLiteralTypes01.js

@@ -122,7 +122,7 @@ function fun2(x, y) {
 function fun3() {
     var args = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        args[_i - 0] = arguments[_i];
+        args[_i] = arguments[_i];
     }
     return args[+randBool()];
 }

tests/baselines/reference/typeGuardFunctionErrors.js

@@ -264,7 +264,7 @@ C;
 function b4() {
     var a = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        a[_i - 0] = arguments[_i];
+        a[_i] = arguments[_i];
     }
     return true;
 }

tests/baselines/reference/undeclaredModuleError.js

@@ -22,7 +22,7 @@ define(["require", "exports", "fs"], function (require, exports, fs) {
     function join() {
         var paths = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            paths[_i - 0] = arguments[_i];
+            paths[_i] = arguments[_i];
         }
     }
     function instrumentFile(covFileDir, covFileName, originalFilePath) {

tests/baselines/reference/unionTypeCallSignatures3.js

@@ -18,7 +18,7 @@ function f2(s) { }
 function f3() {
     var s = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        s[_i - 0] = arguments[_i];
+        s[_i] = arguments[_i];
     }
 }
 function f4(s, s2) { }

tests/baselines/reference/unusedParametersWithUnderscore.js

@@ -35,13 +35,13 @@ function f3(_c) {
 function f4() {
     var arg = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        arg[_i - 0] = arguments[_i];
+        arg[_i] = arguments[_i];
     }
 }
 function f5() {
     var _arg = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        _arg[_i - 0] = arguments[_i];
+        _arg[_i] = arguments[_i];
     }
 }
 function f6(arg, _arg) {

tests/baselines/reference/varArgConstructorMemberParameter.js

@@ -17,7 +17,7 @@ var Foo1 = (function () {
     function Foo1() {
         var args = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            args[_i - 0] = arguments[_i];
+            args[_i] = arguments[_i];
         }
     }
     return Foo1;
@@ -32,7 +32,7 @@ var Foo3 = (function () {
     function Foo3() {
         var args = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            args[_i - 0] = arguments[_i];
+            args[_i] = arguments[_i];
         }
         this.args = args;
     }

tests/baselines/reference/varArgParamTypeCheck.js

@@ -25,7 +25,7 @@ sequence(
 function sequence() {
     var sequences = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        sequences[_i - 0] = arguments[_i];
+        sequences[_i] = arguments[_i];
     }
 }
 function callback(clb) {

tests/baselines/reference/varArgWithNoParamName.js

@@ -5,6 +5,6 @@ function t1(...) {}
 function t1() {
     var  = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        [_i - 0] = arguments[_i];
+        [_i] = arguments[_i];
     }
 }

tests/baselines/reference/vararg.js

@@ -65,7 +65,7 @@ var M;
         C.prototype.fonly = function () {
             var rest = [];
             for (var _i = 0; _i < arguments.length; _i++) {
-                rest[_i - 0] = arguments[_i];
+                rest[_i] = arguments[_i];
             }
             builder = "";
             for (var i = 0; i < rest.length; i++) {