Make KeyedStores from a sloppy arguments array use a handler.

src/ic/ic.h

Index: src/ic/ic.h
diff --git a/src/ic/ic.h b/src/ic/ic.h
index be1c6d2d5bad8e88e63b26eda31cb853f937bfe0..199b1f60c8a8871dd4161d3b6e4c84e2dc03403c 100644
--- a/src/ic/ic.h
+++ b/src/ic/ic.h
@@ -610,7 +610,6 @@ class KeyedStoreIC : public StoreIC {
   static void GenerateSlow(MacroAssembler* masm);
   static void GenerateMegamorphic(MacroAssembler* masm,
                                   LanguageMode language_mode);
-  static void GenerateSloppyArguments(MacroAssembler* masm);
 
   static Handle<Code> initialize_stub(Isolate* isolate,
                                       LanguageMode language_mode,
@@ -635,11 +634,6 @@ class KeyedStoreIC : public StoreIC {
  private:
   inline void set_target(Code* code);
 
-  // Stub accessors.
-  Handle<Code> sloppy_arguments_stub() {
-    return isolate()->builtins()->KeyedStoreIC_SloppyArguments();
-  }
-
   static void Clear(Isolate* isolate, Address address, Code* target,
                     ConstantPoolArray* constant_pool);