[Atomics] code stubs for atomic operations

src/js/harmony-atomics.js

 // Copyright 2015 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 161 matching lines @@
   index2 = TO_INTEGER(index2);
   if (index1 < 0 || index1 >= %_TypedArrayGetLength(ia) ||
       index2 < 0 || index2 >= %_TypedArrayGetLength(ia)) {
     return UNDEFINED;
   }
   return %AtomicsFutexWakeOrRequeue(ia, index1, count, value, index2);
 }
 
 // -------------------------------------------------------------------
 
-function AtomicsConstructor() {}
-
-var Atomics = new AtomicsConstructor();
-
-%InternalSetPrototype(Atomics, GlobalObject.prototype);
-%AddNamedProperty(global, "Atomics", Atomics, DONT_ENUM);
-%FunctionSetInstanceClassName(AtomicsConstructor, 'Atomics');
+var Atomics = global.Atomics;
 
 %AddNamedProperty(Atomics, toStringTagSymbol, "Atomics", READ_ONLY | DONT_ENUM);
 
 // These must match the values in src/futex-emulation.h
 utils.InstallConstants(Atomics, [
   "OK", 0,
   "NOTEQUAL", -1,
   "TIMEDOUT", -2,
 ]);
 
 utils.InstallFunctions(Atomics, DONT_ENUM, [
   "compareExchange", AtomicsCompareExchangeJS,
-  "load", AtomicsLoadJS,
+//  "load", AtomicsLoadJS,
   "store", AtomicsStoreJS,
   "add", AtomicsAddJS,
   "sub", AtomicsSubJS,
   "and", AtomicsAndJS,
   "or", AtomicsOrJS,
   "xor", AtomicsXorJS,
   "exchange", AtomicsExchangeJS,
   "isLockFree", AtomicsIsLockFreeJS,
   "futexWait", AtomicsFutexWaitJS,
   "futexWake", AtomicsFutexWakeJS,
   "futexWakeOrRequeue", AtomicsFutexWakeOrRequeueJS,
 ]);
 
 })