First cut at API for ES6 ArrayBuffers

src/bootstrapper.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1285 matching lines @@
     }
     {  // -- W e a k M a p
       InstallFunction(global, "WeakMap", JS_WEAK_MAP_TYPE, JSWeakMap::kSize,
                       isolate()->initial_object_prototype(),
                       Builtins::kIllegal, true);
     }
   }
 
   if (FLAG_harmony_typed_arrays) {
     {  // -- A r r a y B u f f e r
-      InstallFunction(global, "__ArrayBuffer", JS_ARRAY_BUFFER_TYPE,
-                      JSArrayBuffer::kSize,
-                      isolate()->initial_object_prototype(),
-                      Builtins::kIllegal, true);
+      Handle<JSFunction> array_buffer_fun =
+          InstallFunction(global, "__ArrayBuffer", JS_ARRAY_BUFFER_TYPE,
+                          JSArrayBuffer::kSize,
+                          isolate()->initial_object_prototype(),
+                          Builtins::kIllegal, true);
+      native_context()->set_array_buffer_fun(*array_buffer_fun);
     }
     {
       // -- T y p e d A r r a y s
       InstallTypedArray("__Int8Array");
       InstallTypedArray("__Uint8Array");
       InstallTypedArray("__Int16Array");
       InstallTypedArray("__Uint16Array");
       InstallTypedArray("__Int32Array");
       InstallTypedArray("__Uint32Array");
       InstallTypedArray("__Float32Array");
@@ skipping 1234 matching lines @@
   return from + sizeof(NestingCounterType);
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   ASSERT(!IsActive());
 }
 
 } }  // namespace v8::internal