Store transition on HStoreNamedField as HConstant.

src/hydrogen.cc

 // Copyright 2013 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 4536 matching lines @@
                                     HObjectAccess::ForHeapNumberValue(),
                                     value);
     }
   } else {
     // This is a normal store.
     instr = New<HStoreNamedField>(object, field_access, value);
   }
 
   if (transition_to_field) {
     Handle<Map> transition(lookup->GetTransitionMapFromMap(*map));
-    instr->SetTransition(transition, top_info());
+    HConstant* transition_constant = Add<HConstant>(transition);
+    instr->SetTransition(transition_constant, top_info());
     // TODO(fschneider): Record the new map type of the object in the IR to
     // enable elimination of redundant checks after the transition store.
     instr->SetGVNFlag(kChangesMaps);
   }
   return instr;
 }
 
 
 HInstruction* HOptimizedGraphBuilder::BuildStoreNamedGeneric(
     HValue* object,
@@ skipping 5231 matching lines @@
   if (ShouldProduceTraceOutput()) {
     isolate()->GetHTracer()->TraceHydrogen(name(), graph_);
   }
 
 #ifdef DEBUG
   graph_->Verify(false);  // No full verify.
 #endif
 }
 
 } }  // namespace v8::internal