Tag handlers as HANDLER rather than STUB.

src/ic.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 981 matching lines @@
   receiver_maps->Add(new_receiver_map);
   return true;
 }
 
 
 bool IC::UpdatePolymorphicIC(State state,
                              Handle<HeapObject> receiver,
                              Handle<String> name,
                              Handle<Code> code,
                              StrictModeFlag strict_mode) {
-  if (code->type() == Code::NORMAL) return false;
+  if (code->kind() != Code::HANDLER) return false;
   if (target()->ic_state() == MONOMORPHIC &&
       target()->type() == Code::NORMAL) {
     return false;
   }
 
   MapHandleList receiver_maps;
   CodeHandleList handlers;
 
   int number_of_valid_maps;
   int handler_to_overwrite = -1;
@@ skipping 2149 matching lines @@
 #undef ADDR
 };
 
 
 Address IC::AddressFromUtilityId(IC::UtilityId id) {
   return IC_utilities[id];
 }
 
 
 } }  // namespace v8::internal