Remove all harmony runtime flags which shipped in M51

src/js/typedarray.js

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 (function(global, utils) {
 
 "use strict";
 
 %CheckIsBootstrapping();
 
@@ skipping 29 matching lines @@
 var InternalArray = utils.InternalArray;
 var IsNaN;
 var MakeRangeError;
 var MakeTypeError;
 var MaxSimple;
 var MinSimple;
 var PackedArrayReverse;
 var SpeciesConstructor;
 var ToPositiveInteger;
 var iteratorSymbol = utils.ImportNow("iterator_symbol");
+var speciesSymbol = utils.ImportNow("species_symbol");
 var toStringTagSymbol = utils.ImportNow("to_string_tag_symbol");
 
 macro TYPED_ARRAYS(FUNCTION)
 // arrayIds below should be synchronized with Runtime_TypedArrayInitialize.
 FUNCTION(1, Uint8Array, 1)
 FUNCTION(2, Int8Array, 1)
 FUNCTION(3, Uint16Array, 2)
 FUNCTION(4, Int16Array, 2)
 FUNCTION(5, Uint32Array, 4)
 FUNCTION(6, Int32Array, 4)
@@ skipping 717 matching lines @@
 // TODO(bmeurer): Migrate this to a proper builtin.
 function TypedArrayConstructor() {
   if (IS_UNDEFINED(new.target)) {
     throw MakeTypeError(kConstructorNonCallable, "TypedArray");
   }
   if (new.target === GlobalTypedArray) {
     throw MakeTypeError(kConstructAbstractClass, "TypedArray");
   }
 }
 
+function TypedArraySpecies() {
+  return this;
+}
+
 // -------------------------------------------------------------------
 
 %SetCode(GlobalTypedArray, TypedArrayConstructor);
 utils.InstallFunctions(GlobalTypedArray, DONT_ENUM, [
   "from", TypedArrayFrom,
   "of", TypedArrayOf
 ]);
+utils.InstallGetter(GlobalTypedArray, speciesSymbol, TypedArraySpecies);
 utils.InstallGetter(GlobalTypedArray.prototype, toStringTagSymbol,
                     TypedArrayGetToStringTag);
 utils.InstallFunctions(GlobalTypedArray.prototype, DONT_ENUM, [
   "subarray", TypedArraySubArray,
   "set", TypedArraySet,
   "copyWithin", TypedArrayCopyWithin,
   "every", TypedArrayEvery,
   "fill", TypedArrayFill,
   "filter", TypedArrayFilter,
   "find", TypedArrayFind,
@@ skipping 95 matching lines @@
   "setUint32", DataViewSetUint32JS,
 
   "getFloat32", DataViewGetFloat32JS,
   "setFloat32", DataViewSetFloat32JS,
 
   "getFloat64", DataViewGetFloat64JS,
   "setFloat64", DataViewSetFloat64JS
 ]);
 
 })