Add Object::IsDirty function in the API.

src/api.cc

 // Copyright 2009 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 2138 matching lines @@
   ENTER_V8;
   i::Handle<i::JSObject> obj = Utils::OpenHandle(this);
 
   i::Handle<i::Map> new_map =
     i::Factory::CopyMapDropTransitions(i::Handle<i::Map>(obj->map()));
   new_map->set_is_access_check_needed(true);
   obj->set_map(*new_map);
 }
 
 
+bool v8::Object::IsDirty() {
+  return Utils::OpenHandle(this)->IsDirty();
+}
+
+
 Local<v8::Object> v8::Object::Clone() {
   ON_BAILOUT("v8::Object::Clone()", return Local<Object>());
   ENTER_V8;
   i::Handle<i::JSObject> self = Utils::OpenHandle(this);
   EXCEPTION_PREAMBLE();
   i::Handle<i::JSObject> result = i::Copy(self);
   has_pending_exception = result.is_null();
   EXCEPTION_BAILOUT_CHECK(Local<Object>());
   return Utils::ToLocal(result);
 }
@@ skipping 1557 matching lines @@
 
 
 char* HandleScopeImplementer::Iterate(ObjectVisitor* v, char* storage) {
   HandleScopeImplementer* thread_local =
       reinterpret_cast<HandleScopeImplementer*>(storage);
   thread_local->IterateThis(v);
   return storage + ArchiveSpacePerThread();
 }
 
 } }  // namespace v8::internal