[stubs] Port LoadIndexedStringStub to CSA

src/builtins/builtins.h

 // Copyright 2011 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_BUILTINS_BUILTINS_H_
 #define V8_BUILTINS_BUILTINS_H_
 
 #include "src/base/flags.h"
 #include "src/globals.h"
 
@@ skipping 215 matching lines @@
   TFS(Typeof, BUILTIN, kNoExtraICState, Typeof, 1)                             \
   TFS(GetSuperConstructor, BUILTIN, kNoExtraICState, TypeConversion, 1)        \
                                                                                \
   /* Handlers */                                                               \
   TFS(LoadICProtoArray, BUILTIN, kNoExtraICState, LoadICProtoArray, 1)         \
   TFS(LoadICProtoArrayThrowIfNonexistent, BUILTIN, kNoExtraICState,            \
       LoadICProtoArray, 1)                                                     \
   TFS(KeyedLoadIC_Megamorphic, BUILTIN, kNoExtraICState, LoadWithVector, 1)    \
   TFS(KeyedLoadIC_Miss, BUILTIN, kNoExtraICState, LoadWithVector, 1)           \
   TFS(KeyedLoadIC_Slow, HANDLER, Code::LOAD_IC, LoadWithVector, 1)             \
+  TFS(KeyedLoadIC_IndexedString, HANDLER, Code::LOAD_IC, LoadWithVector, 1)    \
   TFS(KeyedStoreIC_Megamorphic, BUILTIN, kNoExtraICState, StoreWithVector, 1)  \
   TFS(KeyedStoreIC_Megamorphic_Strict, BUILTIN, kNoExtraICState,               \
       StoreWithVector, 1)                                                      \
   TFS(KeyedStoreIC_Miss, BUILTIN, kNoExtraICState, StoreWithVector, 1)         \
   TFS(KeyedStoreIC_Slow, HANDLER, Code::STORE_IC, StoreWithVector, 1)          \
   TFS(LoadGlobalIC_Miss, BUILTIN, kNoExtraICState, LoadGlobalWithVector, 1)    \
   TFS(LoadGlobalIC_Slow, HANDLER, Code::LOAD_GLOBAL_IC, LoadGlobalWithVector,  \
       1)                                                                       \
   TFS(LoadField, BUILTIN, kNoExtraICState, LoadField, 1)                       \
   ASH(LoadIC_Getter_ForDeopt, BUILTIN, kNoExtraICState)                        \
@@ skipping 705 matching lines @@
 
   friend class Isolate;
 
   DISALLOW_COPY_AND_ASSIGN(Builtins);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_BUILTINS_BUILTINS_H_