[Atomics] code stubs for atomic operations

src/js/harmony-atomics.js

Index: src/js/harmony-atomics.js
diff --git a/src/js/harmony-atomics.js b/src/js/harmony-atomics.js
index b861a2a47188c498fa202ef085c1013fa49bc17f..1b112fbf2f319b05ff2a1448e811ca876c872569 100644
--- a/src/js/harmony-atomics.js
+++ b/src/js/harmony-atomics.js
@@ -179,13 +179,7 @@ function AtomicsFutexWakeOrRequeueJS(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);
 
@@ -198,7 +192,7 @@ utils.InstallConstants(Atomics, [
 
 utils.InstallFunctions(Atomics, DONT_ENUM, [
   "compareExchange", AtomicsCompareExchangeJS,
-  "load", AtomicsLoadJS,
+//  "load", AtomicsLoadJS,
   "store", AtomicsStoreJS,
   "add", AtomicsAddJS,
   "sub", AtomicsSubJS,