[ic] Load IC data handlers now support prototype chain checks with global and dictionary objects.

src/ic/ic.h

Index: src/ic/ic.h
diff --git a/src/ic/ic.h b/src/ic/ic.h
index ebd222b0068979b4bb1c90ba91d50aec09c4865a..d2738417a0a1cdebc98b856dd9c74174b8f9b180 100644
--- a/src/ic/ic.h
+++ b/src/ic/ic.h
@@ -311,16 +311,18 @@ class LoadIC : public IC {
  private:
   Handle<Object> SimpleFieldLoad(FieldIndex index);
 
-  // Returns true if the validity cell check is enough to ensure that the
+  // Returns 0 if the validity cell check is enough to ensure that the
   // prototype chain from |receiver_map| till |holder| did not change.
-  bool IsPrototypeValidityCellCheckEnough(Handle<Map> receiver_map,
-                                          Handle<JSObject> holder);
+  // Returns -1 if the handler has to be compiled or the number of prototype
+  // checks otherwise.
+  int GetPrototypeCheckCount(Handle<Map> receiver_map, Handle<JSObject> holder);
 
   // Creates a data handler that represents a prototype chain check followed
   // by given Smi-handler that encoded a load from the holder.
   // Can be used only if IsPrototypeValidityCellCheckEnough() predicate is true.
   Handle<Object> SimpleLoadFromPrototype(Handle<Map> receiver_map,
                                          Handle<JSObject> holder,
+                                         Handle<Name> name,
                                          Handle<Object> smi_handler);
 
   friend class IC;