add weakcallback without persistent copying

test/cctest/test-weakmaps.cc

Index: test/cctest/test-weakmaps.cc
diff --git a/test/cctest/test-weakmaps.cc b/test/cctest/test-weakmaps.cc
index 1dd43a81247ed79a37cd670039f32f76d0ca71da..499286c46f4227c5dff3580bf5442069e7f7c00a 100644
--- a/test/cctest/test-weakmaps.cc
+++ b/test/cctest/test-weakmaps.cc
@@ -65,11 +65,11 @@ static void PutIntoWeakMap(Handle<JSWeakMap> weakmap,
 
 static int NumberOfWeakCalls = 0;
 static void WeakPointerCallback(v8::Isolate* isolate,
-                                v8::Persistent<v8::Value> handle,
+                                v8::Persistent<v8::Value>* handle,
                                 void* id) {
   ASSERT(id == reinterpret_cast<void*>(1234));
   NumberOfWeakCalls++;
-  handle.Dispose(isolate);
+  handle->Dispose(isolate);
 }
 
 
@@ -114,8 +114,8 @@ TEST(Weakness) {
     HandleScope scope(isolate);
     global_handles->MakeWeak(key.location(),
                              reinterpret_cast<void*>(1234),
-                             NULL,
-                             &WeakPointerCallback);
+                             &WeakPointerCallback,
+                             NULL);
   }
   CHECK(global_handles->IsWeak(key.location()));