Revert "Handlify JSObject::AddProperty method" for performance.

src/stub-cache.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 1386 matching lines @@
   MaybeObject* result = LoadWithInterceptor(&args, &attr);
   RETURN_IF_SCHEDULED_EXCEPTION(isolate);
   // This is call IC. In this case, we simply return the undefined result which
   // will lead to an exception when trying to invoke the result as a
   // function.
   return result;
 }
 
 
 RUNTIME_FUNCTION(MaybeObject*, StoreInterceptorProperty) {
-  HandleScope scope(isolate);
   ASSERT(args.length() == 4);
-  Handle<JSObject> recv(JSObject::cast(args[0]));
-  Handle<Name> name(Name::cast(args[1]));
-  Handle<Object> value(args[2], isolate);
+  JSObject* recv = JSObject::cast(args[0]);
+  Name* name = Name::cast(args[1]);
+  Object* value = args[2];
   ASSERT(args.smi_at(3) == kStrictMode || args.smi_at(3) == kNonStrictMode);
   StrictModeFlag strict_mode = static_cast<StrictModeFlag>(args.smi_at(3));
   ASSERT(recv->HasNamedInterceptor());
   PropertyAttributes attr = NONE;
-  Handle<Object> result = JSObject::SetPropertyWithInterceptor(
-      recv, name, value, attr, strict_mode);
-  RETURN_IF_EMPTY_HANDLE(isolate, result);
-  return *result;
+  MaybeObject* result = recv->SetPropertyWithInterceptor(
+      name, value, attr, strict_mode);
+  return result;
 }
 
 
 RUNTIME_FUNCTION(MaybeObject*, KeyedLoadPropertyWithInterceptor) {
   JSObject* receiver = JSObject::cast(args[0]);
   ASSERT(args.smi_at(1) >= 0);
   uint32_t index = args.smi_at(1);
   return receiver->GetElementWithInterceptor(receiver, index);
 }
 
@@ skipping 833 matching lines @@
           Handle<FunctionTemplateInfo>(
               FunctionTemplateInfo::cast(signature->receiver()));
     }
   }
 
   is_simple_api_call_ = true;
 }
 
 
 } }  // namespace v8::internal