Preparatory refactoring-only steps for inlining accessors.

src/hydrogen.h

Index: src/hydrogen.h
diff --git a/src/hydrogen.h b/src/hydrogen.h
index 28f61c5aebb7a9365ed697260182228cd6ec5f5e..ea8aba24d372e9e881a77096851a2b74aa96a9e4 100644
--- a/src/hydrogen.h
+++ b/src/hydrogen.h
@@ -1040,6 +1040,12 @@ class HGraphBuilder: public AstVisitor {
 
   bool TryInlineCall(Call* expr, bool drop_extra = false);
   bool TryInlineConstruct(CallNew* expr, HValue* receiver);
+  bool TryInlineGetter(Handle<JSFunction> getter,
+                       int ast_id,
+                       int return_id);
+  bool TryInlineSetter(Handle<JSFunction> setter,
+                       int ast_id,
+                       int return_id);
   bool TryInlineBuiltinMethodCall(Call* expr,
                                   HValue* receiver,
                                   Handle<Map> receiver_map,
@@ -1089,13 +1095,13 @@ class HGraphBuilder: public AstVisitor {
   HInstruction* BuildIncrement(bool returns_original_input,
                                CountOperation* expr);
   HLoadNamedField* BuildLoadNamedField(HValue* object,
-                                       Property* expr,
-                                       Handle<Map> type,
+                                       Handle<Map> map,
                                        LookupResult* result,
                                        bool smi_and_map_check);
-  HInstruction* BuildLoadNamedGeneric(HValue* object, Property* expr);
-  HInstruction* BuildLoadKeyedGeneric(HValue* object,
-                                      HValue* key);
+  HInstruction* BuildLoadNamedGeneric(HValue* object,
+                                      Handle<String> name,
+                                      Property* expr);
+  HInstruction* BuildLoadKeyedGeneric(HValue* object, HValue* key);
   HInstruction* BuildExternalArrayElementAccess(
       HValue* external_elements,
       HValue* checked_key,
@@ -1148,28 +1154,30 @@ class HGraphBuilder: public AstVisitor {
                                    bool* has_side_effects);
 
   HInstruction* BuildCallGetter(HValue* obj,
-                                Property* expr,
                                 Handle<Map> map,
-                                Handle<Object> callback,
+                                Handle<AccessorPair> accessors,
                                 Handle<JSObject> holder);
+  bool LookupAccessorPair(Handle<Map> map,
+                          Handle<String> name,
+                          Handle<AccessorPair>* accessors,
+                          Handle<JSObject>* holder);
   HInstruction* BuildLoadNamed(HValue* object,
-                               Property* prop,
-                               Handle<Map> map,
-                               Handle<String> name);
+                               Handle<String> name,
+                               Property* expr,
+                               Handle<Map> map);
   HInstruction* BuildCallSetter(HValue* object,
-                                Handle<String> name,
                                 HValue* value,
                                 Handle<Map> map,
-                                Handle<Object> callback,
+                                Handle<AccessorPair> accessors,
                                 Handle<JSObject> holder);
   HInstruction* BuildStoreNamed(HValue* object,
+                                Handle<String> name,
                                 HValue* value,
-                                Handle<Map> type,
-                                Expression* key);
+                                Handle<Map> map);
   HInstruction* BuildStoreNamedField(HValue* object,
                                      Handle<String> name,
                                      HValue* value,
-                                     Handle<Map> type,
+                                     Handle<Map> map,
                                      LookupResult* lookup,
                                      bool smi_and_map_check);
   HInstruction* BuildStoreNamedGeneric(HValue* object,