Revert change 1509 that flush ICs when adding setters on an object or...

src/objects.h

Index: src/objects.h
===================================================================
--- src/objects.h	(revision 1547)
+++ src/objects.h	(working copy)
@@ -1200,13 +1200,8 @@
                                                       String* name);
   PropertyAttributes GetLocalPropertyAttribute(String* name);
 
-  // Defines an accessor.  This may violate some of the assumptions we
-  // make when setting up ics so unless it is guaranteed that no ics
-  // exist for this property we have to clear all ics.  Set the 'never_used'
-  // flag to true if you know there can be no ics.
   Object* DefineAccessor(String* name, bool is_getter, JSFunction* fun,
-                         PropertyAttributes attributes, bool never_used);
-
+                         PropertyAttributes attributes);
   Object* LookupAccessor(String* name, bool is_getter);
 
   // Used from Object::GetProperty().
@@ -1278,8 +1273,6 @@
   inline bool HasNamedInterceptor();
   inline bool HasIndexedInterceptor();
 
-  bool HasLocalPropertyWithType(PropertyType type);
-
   // Support functions for v8 api (needed for correct interceptor behavior).
   bool HasRealNamedProperty(String* key);
   bool HasRealElementProperty(uint32_t index);