Move representation into HObjectAccess and remove from HLoadNamedField and HStoreNamedField.

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 1077 matching lines @@
       HCheckMaps* mapcheck,
       bool is_js_array,
       ElementsKind elements_kind,
       bool is_store,
       LoadKeyedHoleMode load_mode,
       KeyedAccessStoreMode store_mode);
 
   HLoadNamedField* AddLoad(
       HValue *object,
       HObjectAccess access,
-      HValue *typecheck = NULL,
-      Representation representation = Representation::Tagged());
+      HValue *typecheck = NULL);
 
-  HLoadNamedField* BuildLoadNamedField(
-      HValue* object,
-      HObjectAccess access,
-      Representation representation);
-
-  HStoreNamedField* AddStore(
-      HValue *object,
-      HObjectAccess access,
-      HValue *val,
-      Representation representation = Representation::Tagged());
-
+  HLoadNamedField* BuildLoadNamedField(HValue* object, HObjectAccess access);
+  HStoreNamedField* AddStore(HValue *object, HObjectAccess access, HValue *val);
   HStoreNamedField* AddStoreMapConstant(HValue *object, Handle<Map>);
-
   HLoadNamedField* AddLoadElements(HValue *object, HValue *typecheck = NULL);
-
   HLoadNamedField* AddLoadFixedArrayLength(HValue *object);
 
   HValue* AddLoadJSBuiltin(Builtins::JavaScript builtin, HContext* context);
 
   enum SoftDeoptimizeMode {
     MUST_EMIT_SOFT_DEOPT,
     CAN_OMIT_SOFT_DEOPT
   };
 
   void AddSoftDeoptimize(SoftDeoptimizeMode mode = CAN_OMIT_SOFT_DEOPT);
@@ skipping 966 matching lines @@
   EmbeddedVector<char, 64> filename_;
   HeapStringAllocator string_allocator_;
   StringStream trace_;
   int indent_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_H_