diff --git a/src/compiler/transformers/es2015.ts b/src/compiler/transformers/es2015.ts
index 838e58ae99b5c..bc9341a4b4f71 100644
--- a/src/compiler/transformers/es2015.ts
+++ b/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)
                             ),
diff --git a/tests/baselines/reference/accessorWithRestParam.js b/tests/baselines/reference/accessorWithRestParam.js
index a58a7db1c5256..871f3ed00efa0 100644
--- a/tests/baselines/reference/accessorWithRestParam.js
+++ b/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,
diff --git a/tests/baselines/reference/assignmentCompatWithCallSignaturesWithRestParameters.js b/tests/baselines/reference/assignmentCompatWithCallSignaturesWithRestParameters.js
index f4cf5cc79e29b..ec86f218ac0f9 100644
--- a/tests/baselines/reference/assignmentCompatWithCallSignaturesWithRestParameters.js
+++ b/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
diff --git a/tests/baselines/reference/baseTypeAfterDerivedType.js b/tests/baselines/reference/baseTypeAfterDerivedType.js
index b80b62712f5f9..c4ca7cf7b33a5 100644
--- a/tests/baselines/reference/baseTypeAfterDerivedType.js
+++ b/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;
diff --git a/tests/baselines/reference/checkSuperCallBeforeThisAccessing5.js b/tests/baselines/reference/checkSuperCallBeforeThisAccessing5.js
index 8c7f18b77f617..4cce975d6d980 100644
--- a/tests/baselines/reference/checkSuperCallBeforeThisAccessing5.js
+++ b/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;
diff --git a/tests/baselines/reference/checkSuperCallBeforeThisAccessing6.js b/tests/baselines/reference/checkSuperCallBeforeThisAccessing6.js
index cc8912230ab51..782e32362717e 100644
--- a/tests/baselines/reference/checkSuperCallBeforeThisAccessing6.js
+++ b/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;
diff --git a/tests/baselines/reference/checkSuperCallBeforeThisAccessing8.js b/tests/baselines/reference/checkSuperCallBeforeThisAccessing8.js
index 25a480b9b57e8..5dd3708a3bb3d 100644
--- a/tests/baselines/reference/checkSuperCallBeforeThisAccessing8.js
+++ b/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;
diff --git a/tests/baselines/reference/collisionArgumentsArrowFunctions.js b/tests/baselines/reference/collisionArgumentsArrowFunctions.js
index 0aa939e1a2d7f..3e56b8b2f9cc3 100644
--- a/tests/baselines/reference/collisionArgumentsArrowFunctions.js
+++ b/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
 };
diff --git a/tests/baselines/reference/collisionArgumentsClassConstructor.js b/tests/baselines/reference/collisionArgumentsClassConstructor.js
index 570b10d39d379..57ffa88f4e1d6 100644
--- a/tests/baselines/reference/collisionArgumentsClassConstructor.js
+++ b/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
     }
diff --git a/tests/baselines/reference/collisionArgumentsClassMethod.js b/tests/baselines/reference/collisionArgumentsClassMethod.js
index a20e0385e6a1c..85610926e350c 100644
--- a/tests/baselines/reference/collisionArgumentsClassMethod.js
+++ b/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
     };
diff --git a/tests/baselines/reference/collisionArgumentsFunction.js b/tests/baselines/reference/collisionArgumentsFunction.js
index 9ce4a5ab0e20b..c6a26baa495f9 100644
--- a/tests/baselines/reference/collisionArgumentsFunction.js
+++ b/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
 }
diff --git a/tests/baselines/reference/collisionArgumentsFunctionExpressions.js b/tests/baselines/reference/collisionArgumentsFunctionExpressions.js
index 405ceb625c3c9..b3389ddbf4a54 100644
--- a/tests/baselines/reference/collisionArgumentsFunctionExpressions.js
+++ b/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
     }
diff --git a/tests/baselines/reference/collisionRestParameterArrowFunctions.js b/tests/baselines/reference/collisionRestParameterArrowFunctions.js
index 39d449555db1d..3e20f48a4d056 100644
--- a/tests/baselines/reference/collisionRestParameterArrowFunctions.js
+++ b/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
 };
diff --git a/tests/baselines/reference/collisionRestParameterClassConstructor.js b/tests/baselines/reference/collisionRestParameterClassConstructor.js
index 82d2ddc089657..f97e49531f64f 100644
--- a/tests/baselines/reference/collisionRestParameterClassConstructor.js
+++ b/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
     }
diff --git a/tests/baselines/reference/collisionRestParameterClassMethod.js b/tests/baselines/reference/collisionRestParameterClassMethod.js
index eb92faa7b2ac8..cda717c79ab03 100644
--- a/tests/baselines/reference/collisionRestParameterClassMethod.js
+++ b/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
     };
diff --git a/tests/baselines/reference/collisionRestParameterFunction.js b/tests/baselines/reference/collisionRestParameterFunction.js
index 8660e8f5db0ea..651062a696c3b 100644
--- a/tests/baselines/reference/collisionRestParameterFunction.js
+++ b/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
 }
diff --git a/tests/baselines/reference/collisionRestParameterFunctionExpressions.js b/tests/baselines/reference/collisionRestParameterFunctionExpressions.js
index 22709b087eb7b..87bafea09bd2f 100644
--- a/tests/baselines/reference/collisionRestParameterFunctionExpressions.js
+++ b/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
     }
diff --git a/tests/baselines/reference/collisionRestParameterUnderscoreIUsage.js b/tests/baselines/reference/collisionRestParameterUnderscoreIUsage.js
index 97e82a1523f0e..1d7f9f43f7c11 100644
--- a/tests/baselines/reference/collisionRestParameterUnderscoreIUsage.js
+++ b/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
     }
diff --git a/tests/baselines/reference/constructorWithIncompleteTypeAnnotation.js b/tests/baselines/reference/constructorWithIncompleteTypeAnnotation.js
index 1ee309b0eb424..d4cd737ab46f5 100644
--- a/tests/baselines/reference/constructorWithIncompleteTypeAnnotation.js
+++ b/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();
diff --git a/tests/baselines/reference/contextuallyTypedIife.js b/tests/baselines/reference/contextuallyTypedIife.js
index 0a84e45e30bb8..d2eaaf9c2d5fe 100644
--- a/tests/baselines/reference/contextuallyTypedIife.js
+++ b/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; });
 })();
diff --git a/tests/baselines/reference/contextuallyTypingRestParameters.js b/tests/baselines/reference/contextuallyTypingRestParameters.js
index 17561f5d7fccb..8a1f2ffbdfbcc 100644
--- a/tests/baselines/reference/contextuallyTypingRestParameters.js
+++ b/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
diff --git a/tests/baselines/reference/declFileRestParametersOfFunctionAndFunctionType.js b/tests/baselines/reference/declFileRestParametersOfFunctionAndFunctionType.js
index 563551d67a8e5..894f50fc5abf0 100644
--- a/tests/baselines/reference/declFileRestParametersOfFunctionAndFunctionType.js
+++ b/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) { }
diff --git a/tests/baselines/reference/declarationEmitDestructuringOptionalBindingParametersInOverloads.js b/tests/baselines/reference/declarationEmitDestructuringOptionalBindingParametersInOverloads.js
index a3cdee312222c..941bb383f8135 100644
--- a/tests/baselines/reference/declarationEmitDestructuringOptionalBindingParametersInOverloads.js
+++ b/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];
     }
 }
 
diff --git a/tests/baselines/reference/defaultExportWithOverloads01.js b/tests/baselines/reference/defaultExportWithOverloads01.js
index f88d60182db13..770b685378da6 100644
--- a/tests/baselines/reference/defaultExportWithOverloads01.js
+++ b/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 });
diff --git a/tests/baselines/reference/destructuringParameterDeclaration4.js b/tests/baselines/reference/destructuringParameterDeclaration4.js
index 44838d600d8f0..52007df17c94b 100644
--- a/tests/baselines/reference/destructuringParameterDeclaration4.js
+++ b/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
diff --git a/tests/baselines/reference/destructuringParameterDeclaration6.js b/tests/baselines/reference/destructuringParameterDeclaration6.js
index 03307415b6514..a8c7f65211f75 100644
--- a/tests/baselines/reference/destructuringParameterDeclaration6.js
+++ b/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 });
diff --git a/tests/baselines/reference/detachedCommentAtStartOfLambdaFunction1.js b/tests/baselines/reference/detachedCommentAtStartOfLambdaFunction1.js
index 51ae4090ae152..495ac29f26980 100644
--- a/tests/baselines/reference/detachedCommentAtStartOfLambdaFunction1.js
+++ b/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" />
diff --git a/tests/baselines/reference/detachedCommentAtStartOfLambdaFunction2.js b/tests/baselines/reference/detachedCommentAtStartOfLambdaFunction2.js
index 22dfe4bbc4480..e6ced9a8a420c 100644
--- a/tests/baselines/reference/detachedCommentAtStartOfLambdaFunction2.js
+++ b/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;
         };
diff --git a/tests/baselines/reference/disallowLineTerminatorBeforeArrow.js b/tests/baselines/reference/disallowLineTerminatorBeforeArrow.js
index 0c6b98def4fd1..9f0d04d301ce7 100644
--- a/tests/baselines/reference/disallowLineTerminatorBeforeArrow.js
+++ b/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) {
diff --git a/tests/baselines/reference/emitDecoratorMetadata_restArgs.js b/tests/baselines/reference/emitDecoratorMetadata_restArgs.js
index ec8240b264224..4bc1f02321296 100644
--- a/tests/baselines/reference/emitDecoratorMetadata_restArgs.js
+++ b/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;
diff --git a/tests/baselines/reference/emitRestParametersFunction.js b/tests/baselines/reference/emitRestParametersFunction.js
index 01116f2ac9263..dff77ad4b5559 100644
--- a/tests/baselines/reference/emitRestParametersFunction.js
+++ 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) {
diff --git a/tests/baselines/reference/emitRestParametersFunctionExpression.js b/tests/baselines/reference/emitRestParametersFunctionExpression.js
index da87cc79f2de8..55d4b505808f6 100644
--- a/tests/baselines/reference/emitRestParametersFunctionExpression.js
+++ b/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];
     }
 })();
diff --git a/tests/baselines/reference/emitRestParametersFunctionProperty.js b/tests/baselines/reference/emitRestParametersFunctionProperty.js
index 4fd60a9269d87..99d004daeb2d0 100644
--- a/tests/baselines/reference/emitRestParametersFunctionProperty.js
+++ b/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];
         }
     }
 };
diff --git a/tests/baselines/reference/emitRestParametersMethod.js b/tests/baselines/reference/emitRestParametersMethod.js
index 1dec771cde8cc..fed2138f36be1 100644
--- a/tests/baselines/reference/emitRestParametersMethod.js
+++ b/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) {
diff --git a/tests/baselines/reference/emitSkipsThisWithRestParameter.js b/tests/baselines/reference/emitSkipsThisWithRestParameter.js
index d1e99f9409dc5..5645a7e063693 100644
--- a/tests/baselines/reference/emitSkipsThisWithRestParameter.js
+++ b/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));
     };
diff --git a/tests/baselines/reference/es6ClassTest2.js b/tests/baselines/reference/es6ClassTest2.js
index de5657b087e72..533b332422d72 100644
--- a/tests/baselines/reference/es6ClassTest2.js
+++ b/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) {
diff --git a/tests/baselines/reference/es6modulekindWithES5Target6.js b/tests/baselines/reference/es6modulekindWithES5Target6.js
index d305c60e54ec6..cff2327dacba8 100644
--- a/tests/baselines/reference/es6modulekindWithES5Target6.js
+++ b/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) {
diff --git a/tests/baselines/reference/fatarrowfunctionsErrors.js b/tests/baselines/reference/fatarrowfunctionsErrors.js
index ced4660d8d10b..0f318f1aa84ad 100644
--- a/tests/baselines/reference/fatarrowfunctionsErrors.js
+++ b/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];
     }
 };
diff --git a/tests/baselines/reference/fatarrowfunctionsOptionalArgs.js b/tests/baselines/reference/fatarrowfunctionsOptionalArgs.js
index e6e43f8bbf453..f7e49680f8a51 100644
--- a/tests/baselines/reference/fatarrowfunctionsOptionalArgs.js
+++ b/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) {
diff --git a/tests/baselines/reference/fatarrowfunctionsOptionalArgsErrors1.js b/tests/baselines/reference/fatarrowfunctionsOptionalArgsErrors1.js
index 4d27f8230ebfe..edbc897922c1b 100644
--- a/tests/baselines/reference/fatarrowfunctionsOptionalArgsErrors1.js
+++ 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;
 });
diff --git a/tests/baselines/reference/fatarrowfunctionsOptionalArgsErrors3.js b/tests/baselines/reference/fatarrowfunctionsOptionalArgsErrors3.js
index 665c52440169e..d5d4b099a06be 100644
--- a/tests/baselines/reference/fatarrowfunctionsOptionalArgsErrors3.js
+++ b/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;
 });
diff --git a/tests/baselines/reference/fatarrowfunctionsOptionalArgsErrors4.js b/tests/baselines/reference/fatarrowfunctionsOptionalArgsErrors4.js
index dfd7e9f74dcb2..0fbf4b7486e7a 100644
--- a/tests/baselines/reference/fatarrowfunctionsOptionalArgsErrors4.js
+++ b/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) {
diff --git a/tests/baselines/reference/functionCall10.js b/tests/baselines/reference/functionCall10.js
index 9d5cb33a56a3b..51ed76990b343 100644
--- a/tests/baselines/reference/functionCall10.js
+++ 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];
     }
 }
 ;
diff --git a/tests/baselines/reference/functionOverloadsRecursiveGenericReturnType.js b/tests/baselines/reference/functionOverloadsRecursiveGenericReturnType.js
index 1d38d65ad38b4..b616d18c974eb 100644
--- a/tests/baselines/reference/functionOverloadsRecursiveGenericReturnType.js
+++ b/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();
 }
diff --git a/tests/baselines/reference/genericRestArgs.js b/tests/baselines/reference/genericRestArgs.js
index 75c88d7cbf2cc..1cfeb61e1695c 100644
--- a/tests/baselines/reference/genericRestArgs.js
+++ b/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;
 }
diff --git a/tests/baselines/reference/implicitAnyDeclareFunctionWithoutFormalType.js b/tests/baselines/reference/implicitAnyDeclareFunctionWithoutFormalType.js
index c13479daff33f..0b2ba6191ef72 100644
--- a/tests/baselines/reference/implicitAnyDeclareFunctionWithoutFormalType.js
+++ b/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" 
diff --git a/tests/baselines/reference/inheritedConstructorWithRestParams.js b/tests/baselines/reference/inheritedConstructorWithRestParams.js
index c9db175667637..6a30836d72896 100644
--- a/tests/baselines/reference/inheritedConstructorWithRestParams.js
+++ b/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;
diff --git a/tests/baselines/reference/newWithSpread.js b/tests/baselines/reference/newWithSpread.js
index 91c502e50b9ec..c6ea3b44c15e8 100644
--- a/tests/baselines/reference/newWithSpread.js
+++ b/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 () {
diff --git a/tests/baselines/reference/newWithSpreadES5.js b/tests/baselines/reference/newWithSpreadES5.js
index 92904062d0a30..125ac9f0412dd 100644
--- a/tests/baselines/reference/newWithSpreadES5.js
+++ b/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 () {
diff --git a/tests/baselines/reference/noImplicitAnyParametersInBareFunctions.js b/tests/baselines/reference/noImplicitAnyParametersInBareFunctions.js
index 8efe32d3140a9..3b0b630b537c4 100644
--- a/tests/baselines/reference/noImplicitAnyParametersInBareFunctions.js
+++ b/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 "";
 };
diff --git a/tests/baselines/reference/noImplicitAnyParametersInClass.js b/tests/baselines/reference/noImplicitAnyParametersInClass.js
index 0e24793652907..4ad093f56be8b 100644
--- a/tests/baselines/reference/noImplicitAnyParametersInClass.js
+++ b/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.
diff --git a/tests/baselines/reference/noImplicitAnyParametersInModule.js b/tests/baselines/reference/noImplicitAnyParametersInModule.js
index e7f3020555965..1866696fe34d1 100644
--- a/tests/baselines/reference/noImplicitAnyParametersInModule.js
+++ b/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 "";
     };
diff --git a/tests/baselines/reference/nonArrayRestArgs.js b/tests/baselines/reference/nonArrayRestArgs.js
index d16b7dea3466e..813f7141b5ccd 100644
--- a/tests/baselines/reference/nonArrayRestArgs.js
+++ b/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;
diff --git a/tests/baselines/reference/optionalBindingParametersInOverloads1.js b/tests/baselines/reference/optionalBindingParametersInOverloads1.js
index 3658efa72c6e1..9fd64d0da9e72 100644
--- a/tests/baselines/reference/optionalBindingParametersInOverloads1.js
+++ b/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]);
diff --git a/tests/baselines/reference/optionalBindingParametersInOverloads2.js b/tests/baselines/reference/optionalBindingParametersInOverloads2.js
index 1ddfdae4f07d9..033d81993f5e9 100644
--- a/tests/baselines/reference/optionalBindingParametersInOverloads2.js
+++ b/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 });
diff --git a/tests/baselines/reference/overloadGenericFunctionWithRestArgs.js b/tests/baselines/reference/overloadGenericFunctionWithRestArgs.js
index 356cece5ab6e3..e83f33f3ad024 100644
--- a/tests/baselines/reference/overloadGenericFunctionWithRestArgs.js
+++ b/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();
 }
diff --git a/tests/baselines/reference/parenthesizedContexualTyping2.js b/tests/baselines/reference/parenthesizedContexualTyping2.js
index 993a10ba49cd8..48b9355ca317a 100644
--- a/tests/baselines/reference/parenthesizedContexualTyping2.js
+++ b/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;
 }
diff --git a/tests/baselines/reference/parser509668.js b/tests/baselines/reference/parser509668.js
index c767aea676af0..5dfdc7d1e3137 100644
--- a/tests/baselines/reference/parser509668.js
+++ b/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;
     }
diff --git a/tests/baselines/reference/parserMemberAccessorDeclaration18.js b/tests/baselines/reference/parserMemberAccessorDeclaration18.js
index e25aa69f4654f..c6c902d49157c 100644
--- a/tests/baselines/reference/parserMemberAccessorDeclaration18.js
+++ b/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,
diff --git a/tests/baselines/reference/parserParameterList10.js b/tests/baselines/reference/parserParameterList10.js
index 93ed8c60e8bee..f899901728c20 100644
--- a/tests/baselines/reference/parserParameterList10.js
+++ b/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;
diff --git a/tests/baselines/reference/parserParameterList11.js b/tests/baselines/reference/parserParameterList11.js
index a56e8b58c201a..c736e5fddb6b7 100644
--- a/tests/baselines/reference/parserParameterList11.js
+++ b/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;
 });
diff --git a/tests/baselines/reference/parserParameterList9.js b/tests/baselines/reference/parserParameterList9.js
index ec08b48f5729e..3ccc1d0202569 100644
--- a/tests/baselines/reference/parserParameterList9.js
+++ b/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;
diff --git a/tests/baselines/reference/partiallyAnnotatedFunctionInferenceWithTypeParameter.js b/tests/baselines/reference/partiallyAnnotatedFunctionInferenceWithTypeParameter.js
index d485fb11d7fb4..d20b35625e961 100644
--- a/tests/baselines/reference/partiallyAnnotatedFunctionInferenceWithTypeParameter.js
+++ b/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
diff --git a/tests/baselines/reference/restArgAssignmentCompat.js b/tests/baselines/reference/restArgAssignmentCompat.js
index 3f8749f332dc4..b679f56a88172 100644
--- a/tests/baselines/reference/restArgAssignmentCompat.js
+++ b/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); });
 }
diff --git a/tests/baselines/reference/restArgMissingName.js b/tests/baselines/reference/restArgMissingName.js
index b87800c7dacb6..f4ec647f7e4fb 100644
--- a/tests/baselines/reference/restArgMissingName.js
+++ b/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];
     }
 }
diff --git a/tests/baselines/reference/restParamAsOptional.js b/tests/baselines/reference/restParamAsOptional.js
index eb224b84c33b1..2f6da684c0edd 100644
--- a/tests/baselines/reference/restParamAsOptional.js
+++ b/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];
     }
 }
diff --git a/tests/baselines/reference/restParamModifier2.js b/tests/baselines/reference/restParamModifier2.js
index a11b78a2376f8..e98aef3f9ad9a 100644
--- a/tests/baselines/reference/restParamModifier2.js
+++ b/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;
     }
diff --git a/tests/baselines/reference/restParameterAssignmentCompatibility.js b/tests/baselines/reference/restParameterAssignmentCompatibility.js
index 0821cf182771f..01472c78c1ec5 100644
--- a/tests/baselines/reference/restParameterAssignmentCompatibility.js
+++ b/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;
diff --git a/tests/baselines/reference/restParameterNoTypeAnnotation.js b/tests/baselines/reference/restParameterNoTypeAnnotation.js
index 95e092fdd4373..b22b531675daf 100644
--- a/tests/baselines/reference/restParameterNoTypeAnnotation.js
+++ b/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;
diff --git a/tests/baselines/reference/restParameterWithoutAnnotationIsAnyArray.js b/tests/baselines/reference/restParameterWithoutAnnotationIsAnyArray.js
index c6b5fa2ae413f..5c1db2c62e1b3 100644
--- a/tests/baselines/reference/restParameterWithoutAnnotationIsAnyArray.js
+++ b/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];
         }
     }
 };
diff --git a/tests/baselines/reference/restParametersOfNonArrayTypes.js b/tests/baselines/reference/restParametersOfNonArrayTypes.js
index 5400a8b43cc91..6714516772083 100644
--- a/tests/baselines/reference/restParametersOfNonArrayTypes.js
+++ b/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];
         }
     }
 };
diff --git a/tests/baselines/reference/restParametersOfNonArrayTypes2.js b/tests/baselines/reference/restParametersOfNonArrayTypes2.js
index d405c13db5ae1..7df2458a27b3f 100644
--- a/tests/baselines/reference/restParametersOfNonArrayTypes2.js
+++ b/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];
         }
     }
 };
diff --git a/tests/baselines/reference/restParametersWithArrayTypeAnnotations.js b/tests/baselines/reference/restParametersWithArrayTypeAnnotations.js
index 3f1cf33e7ba18..1004fdfcbcb41 100644
--- a/tests/baselines/reference/restParametersWithArrayTypeAnnotations.js
+++ b/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];
         }
     }
 };
diff --git a/tests/baselines/reference/restParamsWithNonRestParams.js b/tests/baselines/reference/restParamsWithNonRestParams.js
index 6b0caa723940a..7b16959143a45 100644
--- a/tests/baselines/reference/restParamsWithNonRestParams.js
+++ b/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
diff --git a/tests/baselines/reference/stringLiteralTypeIsSubtypeOfString.js b/tests/baselines/reference/stringLiteralTypeIsSubtypeOfString.js
index 78417b9a082bc..55ea133577104 100644
--- a/tests/baselines/reference/stringLiteralTypeIsSubtypeOfString.js
+++ b/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;
     };
diff --git a/tests/baselines/reference/stringLiteralTypesOverloads03.js b/tests/baselines/reference/stringLiteralTypesOverloads03.js
index c1e7916088095..4fdfd4f85d0bd 100644
--- a/tests/baselines/reference/stringLiteralTypesOverloads03.js
+++ b/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;
 }
diff --git a/tests/baselines/reference/subtypingWithCallSignatures2.js b/tests/baselines/reference/subtypingWithCallSignatures2.js
index 843a727c33e6b..3b5fada20121b 100644
--- a/tests/baselines/reference/subtypingWithCallSignatures2.js
+++ b/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;
 };
diff --git a/tests/baselines/reference/subtypingWithCallSignatures3.js b/tests/baselines/reference/subtypingWithCallSignatures3.js
index a9e7d01aab661..4ac7d3a7f24a9 100644
--- a/tests/baselines/reference/subtypingWithCallSignatures3.js
+++ b/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;
     };
diff --git a/tests/baselines/reference/taggedTemplateStringsHexadecimalEscapes.js b/tests/baselines/reference/taggedTemplateStringsHexadecimalEscapes.js
index e4482ded0c2dd..3df09abb2db8d 100644
--- a/tests/baselines/reference/taggedTemplateStringsHexadecimalEscapes.js
+++ b/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"));
diff --git a/tests/baselines/reference/taggedTemplateStringsPlainCharactersThatArePartsOfEscapes01.js b/tests/baselines/reference/taggedTemplateStringsPlainCharactersThatArePartsOfEscapes01.js
index 9450e939f2f69..33c2914e3e824 100644
--- a/tests/baselines/reference/taggedTemplateStringsPlainCharactersThatArePartsOfEscapes01.js
+++ b/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));
diff --git a/tests/baselines/reference/taggedTemplateStringsWithMultilineTemplate.js b/tests/baselines/reference/taggedTemplateStringsWithMultilineTemplate.js
index cee9d1efce431..9ffc0cadfef09 100644
--- a/tests/baselines/reference/taggedTemplateStringsWithMultilineTemplate.js
+++ b/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));
diff --git a/tests/baselines/reference/taggedTemplateStringsWithOverloadResolution1.js b/tests/baselines/reference/taggedTemplateStringsWithOverloadResolution1.js
index 4245b0cb0f436..19211c2fa8a3b 100644
--- a/tests/baselines/reference/taggedTemplateStringsWithOverloadResolution1.js
+++ b/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;
 }
diff --git a/tests/baselines/reference/taggedTemplateStringsWithOverloadResolution2.js b/tests/baselines/reference/taggedTemplateStringsWithOverloadResolution2.js
index c16bfa5454f77..fdac55da181b5 100644
--- a/tests/baselines/reference/taggedTemplateStringsWithOverloadResolution2.js
+++ b/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;
 }
diff --git a/tests/baselines/reference/taggedTemplateStringsWithTypeErrorInFunctionExpressionsInSubstitutionExpression.js b/tests/baselines/reference/taggedTemplateStringsWithTypeErrorInFunctionExpressionsInSubstitutionExpression.js
index f7523eb9870dd..334f61e453d3d 100644
--- a/tests/baselines/reference/taggedTemplateStringsWithTypeErrorInFunctionExpressionsInSubstitutionExpression.js
+++ b/tests/baselines/reference/taggedTemplateStringsWithTypeErrorInFunctionExpressionsInSubstitutionExpression.js
@@ -10,7 +10,7 @@ foo `${function (x: number) { x = "bad"; } }`;
 function foo() {
     var rest = [];
     for (var _i = 0; _i < arguments.length; _i++) {
-        rest[_i - 0] = arguments[_i];
+        rest[_i] = arguments[_i];
     }
 }
 (_a = ["", ""], _a.raw = ["", ""], foo(_a, function (x) { x = "bad"; }));
diff --git a/tests/baselines/reference/taggedTemplateStringsWithUnicodeEscapes.js b/tests/baselines/reference/taggedTemplateStringsWithUnicodeEscapes.js
index ae73b0b227e58..6a04b082e1f08 100644
--- a/tests/baselines/reference/taggedTemplateStringsWithUnicodeEscapes.js
+++ b/tests/baselines/reference/taggedTemplateStringsWithUnicodeEscapes.js
@@ -8,7 +8,7 @@ f `'\u{1f4a9}'${ " 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 "));
diff --git a/tests/baselines/reference/taggedTemplateStringsWithWhitespaceEscapes.js b/tests/baselines/reference/taggedTemplateStringsWithWhitespaceEscapes.js
index 65af8da59f997..e8f219fd12582 100644
--- a/tests/baselines/reference/taggedTemplateStringsWithWhitespaceEscapes.js
+++ b/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));
diff --git a/tests/baselines/reference/trailingCommasInFunctionParametersAndArguments.js b/tests/baselines/reference/trailingCommasInFunctionParametersAndArguments.js
index 6f30140c63ec1..495e9354024e6 100644
--- a/tests/baselines/reference/trailingCommasInFunctionParametersAndArguments.js
+++ b/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, []);
diff --git a/tests/baselines/reference/typeArgumentsWithStringLiteralTypes01.js b/tests/baselines/reference/typeArgumentsWithStringLiteralTypes01.js
index c07dd22539648..74a609694aa29 100644
--- a/tests/baselines/reference/typeArgumentsWithStringLiteralTypes01.js
+++ b/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()];
 }
diff --git a/tests/baselines/reference/typeGuardFunctionErrors.js b/tests/baselines/reference/typeGuardFunctionErrors.js
index 244b0df3333db..99c25faaa88ca 100644
--- a/tests/baselines/reference/typeGuardFunctionErrors.js
+++ b/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;
 }
diff --git a/tests/baselines/reference/undeclaredModuleError.js b/tests/baselines/reference/undeclaredModuleError.js
index c9a43ab4ce67e..88f5e3ab3522c 100644
--- a/tests/baselines/reference/undeclaredModuleError.js
+++ b/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) {
diff --git a/tests/baselines/reference/unionTypeCallSignatures3.js b/tests/baselines/reference/unionTypeCallSignatures3.js
index 2dae152e47450..b3c24a0e60a60 100644
--- a/tests/baselines/reference/unionTypeCallSignatures3.js
+++ b/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) { }
diff --git a/tests/baselines/reference/unusedParametersWithUnderscore.js b/tests/baselines/reference/unusedParametersWithUnderscore.js
index 2899d347c66f3..02d5da3339543 100644
--- a/tests/baselines/reference/unusedParametersWithUnderscore.js
+++ b/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) {
diff --git a/tests/baselines/reference/varArgConstructorMemberParameter.js b/tests/baselines/reference/varArgConstructorMemberParameter.js
index 2715ed9e542f3..0d80c2b4dbbd7 100644
--- a/tests/baselines/reference/varArgConstructorMemberParameter.js
+++ b/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;
     }
diff --git a/tests/baselines/reference/varArgParamTypeCheck.js b/tests/baselines/reference/varArgParamTypeCheck.js
index c2a33416436a0..2807ca970580b 100644
--- a/tests/baselines/reference/varArgParamTypeCheck.js
+++ b/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) {
diff --git a/tests/baselines/reference/varArgWithNoParamName.js b/tests/baselines/reference/varArgWithNoParamName.js
index 05a9695770a3a..3aa9fcbabb0a7 100644
--- a/tests/baselines/reference/varArgWithNoParamName.js
+++ b/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];
     }
 }
diff --git a/tests/baselines/reference/vararg.js b/tests/baselines/reference/vararg.js
index 015c8c9957a7e..bd4a79b462631 100644
--- a/tests/baselines/reference/vararg.js
+++ b/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++) {