Revert of Turn StoreIC::Megamorphic into a builtin, get rid of the non-monomorphic-cache

src/builtins.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/builtins.h"
 
 #include "src/api.h"
 #include "src/api-arguments.h"
 #include "src/api-natives.h"
 #include "src/base/once.h"
@@ skipping 4649 matching lines @@
 
 static void Generate_KeyedStoreIC_Slow(MacroAssembler* masm) {
   ElementHandlerCompiler::GenerateStoreSlow(masm);
 }
 
 
 static void Generate_StoreIC_Setter_ForDeopt(MacroAssembler* masm) {
   NamedStoreHandlerCompiler::GenerateStoreViaSetterForDeopt(masm);
 }
 
-static void Generate_StoreIC_Megamorphic(MacroAssembler* masm) {
-  StoreIC::GenerateMegamorphic(masm);
-}
-
-static void Generate_StoreIC_Megamorphic_Strict(MacroAssembler* masm) {
-  StoreIC::GenerateMegamorphic(masm);
-}
-
 
 static void Generate_KeyedStoreIC_Megamorphic(MacroAssembler* masm) {
   KeyedStoreIC::GenerateMegamorphic(masm, SLOPPY);
 }
 
 
 static void Generate_KeyedStoreIC_Megamorphic_Strict(MacroAssembler* masm) {
   KeyedStoreIC::GenerateMegamorphic(masm, STRICT);
 }
 
@@ skipping 293 matching lines @@
 BUILTIN_LIST_T(DEFINE_BUILTIN_ACCESSOR_T)
 BUILTIN_LIST_H(DEFINE_BUILTIN_ACCESSOR_H)
 BUILTIN_LIST_DEBUG_A(DEFINE_BUILTIN_ACCESSOR_A)
 #undef DEFINE_BUILTIN_ACCESSOR_C
 #undef DEFINE_BUILTIN_ACCESSOR_A
 #undef DEFINE_BUILTIN_ACCESSOR_T
 #undef DEFINE_BUILTIN_ACCESSOR_H
 
 }  // namespace internal
 }  // namespace v8