Reverted 3130-3131 since they don't work on mac.

src/stub-cache.cc

Index: src/stub-cache.cc
===================================================================
--- src/stub-cache.cc	(revision 3132)
+++ src/stub-cache.cc	(working copy)
@@ -735,16 +735,11 @@
 
 
 Object* LoadCallbackProperty(Arguments args) {
-  ASSERT(args[0]->IsJSObject());
-  ASSERT(args[1]->IsJSObject());
   AccessorInfo* callback = AccessorInfo::cast(args[2]);
   Address getter_address = v8::ToCData<Address>(callback->getter());
   v8::AccessorGetter fun = FUNCTION_CAST<v8::AccessorGetter>(getter_address);
   ASSERT(fun != NULL);
-  CustomArguments custom_args(callback->data(),
-                              JSObject::cast(args[0]),
-                              JSObject::cast(args[1]));
-  v8::AccessorInfo info(custom_args.end());
+  v8::AccessorInfo info(args.arguments());
   HandleScope scope;
   v8::Handle<v8::Value> result;
   {