Cleanup polymorphic IC code to make use of ElementsKind information in maps.

src/ic.h

Index: src/ic.h
diff --git a/src/ic.h b/src/ic.h
index 4b301c5baabbb0203df7bd5e4f54aa337345c10d..9a663ba6aac1e9158efe019a8a950851e4bc0c30 100644
--- a/src/ic.h
+++ b/src/ic.h
@@ -358,8 +358,6 @@ class KeyedIC: public IC {
 
   virtual Code::Kind kind() const = 0;
 
-  virtual String* GetStubNameForCache(IC::State ic_state) = 0;
-
   MaybeObject* ComputeStub(JSObject* receiver,
                            bool is_store,
                            StrictModeFlag strict_mode,
@@ -426,8 +424,6 @@ class KeyedLoadIC: public KeyedIC {
  protected:
   virtual Code::Kind kind() const { return Code::KEYED_LOAD_IC; }
 
-  virtual String* GetStubNameForCache(IC::State ic_state);
-
   virtual MaybeObject* ConstructMegamorphicStub(
       MapList* receiver_maps,
       CodeList* targets,
@@ -581,8 +577,6 @@ class KeyedStoreIC: public KeyedIC {
  protected:
   virtual Code::Kind kind() const { return Code::KEYED_STORE_IC; }
 
-  virtual String* GetStubNameForCache(IC::State ic_state);
-
   virtual MaybeObject* ConstructMegamorphicStub(
       MapList* receiver_maps,
       CodeList* targets,