Remove unused code in JS builtins

Change-Id: I7d5d9ff4d69628573586c1a8e5704d2b6009adc8
Reviewed-on: https://chromium-review.googlesource.com/980534Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52250}

src/js/array.js

@@ -11,8 +11,6 @@
 // -------------------------------------------------------------------
 // Imports
 
-var GetIterator;
-var GetMethod;
 var GlobalArray = global.Array;
 var InternalArray = utils.InternalArray;
 var MathMax = global.Math.max;
@@ -22,11 +20,6 @@ var ObjectToString = global.Object.prototype.toString;
 var iteratorSymbol = utils.ImportNow("iterator_symbol");
 var unscopablesSymbol = utils.ImportNow("unscopables_symbol");
 
-utils.Import(function(from) {
-  GetIterator = from.GetIterator;
-  GetMethod = from.GetMethod;
-});
-
 // -------------------------------------------------------------------
 
 macro IS_PROXY(arg)

src/js/prologue.js

@@ -99,42 +99,6 @@ function PostNatives(utils) {
   utils.PostNatives = UNDEFINED;
 }
 
-// ----------------------------------------------------------------------------
-// Object
-
-var iteratorSymbol = ImportNow("iterator_symbol");
-
-// ES6 7.3.9
-function GetMethod(obj, p) {
-  var func = obj[p];
-  if (IS_NULL_OR_UNDEFINED(func)) return UNDEFINED;
-  if (IS_CALLABLE(func)) return func;
-  throw %make_type_error(kCalledNonCallable, typeof func);
-}
-
-// ----------------------------------------------------------------------------
-// Iterator related spec functions.
-
-// ES6 7.4.1 GetIterator(obj, method)
-function GetIterator(obj, method) {
-  if (IS_UNDEFINED(method)) {
-    method = obj[iteratorSymbol];
-  }
-  if (!IS_CALLABLE(method)) {
-    throw %make_type_error(kNotIterable, obj);
-  }
-  var iterator = %_Call(method, obj);
-  if (!IS_RECEIVER(iterator)) {
-    throw %make_type_error(kNotAnIterator, iterator);
-  }
-  return iterator;
-}
-
-
-exports_container.GetIterator = GetIterator;
-exports_container.GetMethod = GetMethod;
-
-
 // -----------------------------------------------------------------------
 
 %OptimizeObjectForAddingMultipleProperties(utils, 14);

src/js/typedarray.js

@@ -13,13 +13,9 @@
 
 // array.js has to come before typedarray.js for this to work
 var ArrayToString = utils.ImportNow("ArrayToString");
-var GetIterator;
-var GetMethod;
 var InnerArrayJoin;
 var InnerArraySort;
 var InnerArrayToLocaleString;
-var InternalArray = utils.InternalArray;
-var iteratorSymbol = utils.ImportNow("iterator_symbol");
 
 macro TYPED_ARRAYS(FUNCTION)
 FUNCTION(Uint8Array, 1)
@@ -48,8 +44,6 @@ endmacro
 var GlobalTypedArray = %object_get_prototype_of(GlobalUint8Array);
 
 utils.Import(function(from) {
-  GetIterator = from.GetIterator;
-  GetMethod = from.GetMethod;
   InnerArrayJoin = from.InnerArrayJoin;
   InnerArraySort = from.InnerArraySort;
   InnerArrayToLocaleString = from.InnerArrayToLocaleString;
@@ -65,19 +59,6 @@ function ValidateTypedArray(array, methodName) {
     throw %make_type_error(kDetachedOperation, methodName);
 }
 
-function TypedArrayCreate(constructor, arg0, arg1, arg2) {
-  if (IS_UNDEFINED(arg1)) {
-    var newTypedArray = new constructor(arg0);
-  } else {
-    var newTypedArray = new constructor(arg0, arg1, arg2);
-  }
-  ValidateTypedArray(newTypedArray, "TypedArrayCreate");
-  if (IS_NUMBER(arg0) && %_TypedArrayGetLength(newTypedArray) < arg0) {
-    throw %make_type_error(kTypedArrayTooShort);
-  }
-  return newTypedArray;
-}
-
 // ES6 draft 05-18-15, section 22.2.3.25
 DEFINE_METHOD(
   GlobalTypedArray.prototype,