Call builtin code wrapped in functions from the bootstrapper.

src/runtime/runtime-object.cc

 // Copyright 2014 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.
 
 #include "src/v8.h"
 
 #include "src/arguments.h"
 #include "src/bootstrapper.h"
 #include "src/debug.h"
 #include "src/messages.h"
@@ skipping 1260 matching lines @@
   CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0);
   function->CompleteInobjectSlackTracking();
 
   return isolate->heap()->undefined_value();
 }
 
 
 RUNTIME_FUNCTION(Runtime_GlobalProxy) {
   SealHandleScope shs(isolate);
   DCHECK(args.length() == 1);
-  CONVERT_ARG_CHECKED(Object, global, 0);
-  if (!global->IsJSGlobalObject()) return isolate->heap()->null_value();
-  return JSGlobalObject::cast(global)->global_proxy();
+  CONVERT_ARG_CHECKED(JSFunction, function, 0);
+  return function->context()->global_proxy();
 }
 
 
 RUNTIME_FUNCTION(Runtime_LookupAccessor) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 3);
   CONVERT_ARG_HANDLE_CHECKED(JSReceiver, receiver, 0);
   CONVERT_ARG_HANDLE_CHECKED(Name, name, 1);
   CONVERT_SMI_ARG_CHECKED(flag, 2);
   AccessorComponent component = flag == 0 ? ACCESSOR_GETTER : ACCESSOR_SETTER;
@@ skipping 259 matching lines @@
   CONVERT_PROPERTY_ATTRIBUTES_CHECKED(attrs, 3);
 
   RETURN_FAILURE_ON_EXCEPTION(
       isolate,
       JSObject::DefineAccessor(object, name, isolate->factory()->null_value(),
                                setter, attrs));
   return isolate->heap()->undefined_value();
 }
 }
 }  // namespace v8::internal