Fix polymorphic to monomorphic load to take representation into account.

src/hydrogen.h

 // 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 964 matching lines @@
  protected:
   virtual bool BuildGraph() = 0;
 
   HBasicBlock* CreateBasicBlock(HEnvironment* env);
   HBasicBlock* CreateLoopHeaderBlock();
 
   HValue* BuildCheckNonSmi(HValue* object);
   HValue* BuildCheckMap(HValue* obj, Handle<Map> map);
 
   // Building common constructs
+  HLoadNamedField* DoBuildLoadNamedField(HValue* object,
+                                         bool inobject,
+                                         Representation representation,
+                                         int offset);
+
   HInstruction* BuildExternalArrayElementAccess(
       HValue* external_elements,
       HValue* checked_key,
       HValue* val,
       HValue* dependency,
       ElementsKind elements_kind,
       bool is_store);
 
   HInstruction* BuildFastElementAccess(
       HValue* elements,
@@ skipping 1010 matching lines @@
   EmbeddedVector<char, 64> filename_;
   HeapStringAllocator string_allocator_;
   StringStream trace_;
   int indent_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_H_