Don't use StubType to probe the code caches.

src/stub-cache.h

Index: src/stub-cache.h
diff --git a/src/stub-cache.h b/src/stub-cache.h
index 3e2abaa53ae896bf014af77ad50d812ab205835e..6d2099db86dce87d1ebc33416d8be9d0270818f5 100644
--- a/src/stub-cache.h
+++ b/src/stub-cache.h
@@ -83,24 +83,20 @@ class StubCache {
   Handle<Code> FindIC(Handle<Name> name,
                       Handle<Map> stub_holder_map,
                       Code::Kind kind,
-                      Code::StubType type,
                       Code::ExtraICState extra_state = Code::kNoExtraICState);
 
   Handle<Code> FindIC(Handle<Name> name,
                       Handle<JSObject> stub_holder,
                       Code::Kind kind,
-                      Code::StubType type,
                       Code::ExtraICState extra_state = Code::kNoExtraICState);
 
   Handle<Code> FindLoadHandler(Handle<Name> name,
                                Handle<JSObject> receiver,
-                               Code::Kind kind,
-                               Code::StubType type);
+                               Code::Kind kind);
 
   Handle<Code> FindStoreHandler(Handle<Name> name,
                                 Handle<JSObject> receiver,
                                 Code::Kind kind,
-                                Code::StubType type,
                                 StrictModeFlag strict_mode);
 
   Handle<Code> ComputeMonomorphicIC(Handle<HeapObject> receiver,