[stubs] Port KeyedStoreIC dispatcher to TurboFan

src/code-factory.h

 // 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.
 
 #ifndef V8_CODE_FACTORY_H_
 #define V8_CODE_FACTORY_H_
 
 #include "src/allocation.h"
 #include "src/assembler.h"
 #include "src/codegen.h"
@@ skipping 32 matching lines @@
                          ConvertReceiverMode mode = ConvertReceiverMode::kAny,
                          TailCallMode tail_call_mode = TailCallMode::kDisallow);
   static Callable CallICInOptimizedCode(
       Isolate* isolate, ConvertReceiverMode mode = ConvertReceiverMode::kAny,
       TailCallMode tail_call_mode = TailCallMode::kDisallow);
   static Callable StoreIC(Isolate* isolate, LanguageMode mode);
   static Callable StoreICInOptimizedCode(Isolate* isolate, LanguageMode mode);
   static Callable KeyedStoreIC(Isolate* isolate, LanguageMode mode);
   static Callable KeyedStoreICInOptimizedCode(Isolate* isolate,
                                               LanguageMode mode);
+  static Callable KeyedStoreIC_Megamorphic(Isolate* isolate, LanguageMode mode);
 
   static Callable ResumeGenerator(Isolate* isolate);
 
   static Callable CompareIC(Isolate* isolate, Token::Value op);
   static Callable CompareNilIC(Isolate* isolate, NilValue nil_value);
 
   static Callable BinaryOpIC(Isolate* isolate, Token::Value op);
 
   static Callable ApiGetter(Isolate* isolate);
 
@@ skipping 99 matching lines @@
       Isolate* isolate, CallableType function_type = CallableType::kAny);
   static Callable InterpreterPushArgsAndConstructArray(Isolate* isolate);
   static Callable InterpreterCEntry(Isolate* isolate, int result_size = 1);
   static Callable InterpreterOnStackReplacement(Isolate* isolate);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CODE_FACTORY_H_