Move representation into HObjectAccess and remove from HLoadNamedField and HStoreNamedField.

src/code-stubs-hydrogen.cc

Index: src/code-stubs-hydrogen.cc
diff --git a/src/code-stubs-hydrogen.cc b/src/code-stubs-hydrogen.cc
index 51734da2f16a754110d4acb04f6192e2aeb10664..233a793a99032f235bbc2e0c6db977bf5a461a49 100644
--- a/src/code-stubs-hydrogen.cc
+++ b/src/code-stubs-hydrogen.cc
@@ -482,11 +482,11 @@ Handle<Code> KeyedLoadFastElementStub::GenerateCode() {
 
 template<>
 HValue* CodeStubGraphBuilder<LoadFieldStub>::BuildCodeStub() {
+  Representation rep = casted_stub()->representation();
   HObjectAccess access = casted_stub()->is_inobject() ?
-      HObjectAccess::ForJSObjectOffset(casted_stub()->offset()) :
-      HObjectAccess::ForBackingStoreOffset(casted_stub()->offset());
-  return AddInstruction(BuildLoadNamedField(GetParameter(0), access,
-      casted_stub()->representation()));
+      HObjectAccess::ForJSObjectOffset(casted_stub()->offset(), rep) :
+      HObjectAccess::ForBackingStoreOffset(casted_stub()->offset(), rep);
+  return AddInstruction(BuildLoadNamedField(GetParameter(0), access));
 }
 
 
@@ -497,11 +497,11 @@ Handle<Code> LoadFieldStub::GenerateCode() {
 
 template<>
 HValue* CodeStubGraphBuilder<KeyedLoadFieldStub>::BuildCodeStub() {
+  Representation rep = casted_stub()->representation();
   HObjectAccess access = casted_stub()->is_inobject() ?
-      HObjectAccess::ForJSObjectOffset(casted_stub()->offset()) :
-      HObjectAccess::ForBackingStoreOffset(casted_stub()->offset());
-  return AddInstruction(BuildLoadNamedField(GetParameter(0), access,
-      casted_stub()->representation()));
+      HObjectAccess::ForJSObjectOffset(casted_stub()->offset(), rep) :
+      HObjectAccess::ForBackingStoreOffset(casted_stub()->offset(), rep);
+  return AddInstruction(BuildLoadNamedField(GetParameter(0), access));
 }