Remove the strict-mode flag from store handlers. It's only relevant to the IC stub.

src/builtins.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 198 matching lines @@
   V(StackCheck,                     BUILTIN, UNINITIALIZED,             \
                                     Code::kNoExtraICState)              \
                                                                         \
   V(MarkCodeAsExecutedOnce,         BUILTIN, UNINITIALIZED,             \
                                     Code::kNoExtraICState)              \
   V(MarkCodeAsExecutedTwice,        BUILTIN, UNINITIALIZED,             \
                                     Code::kNoExtraICState)              \
   CODE_AGE_LIST_WITH_ARG(DECLARE_CODE_AGE_BUILTIN, V)
 
 // Define list of builtin handlers implemented in assembly.
-#define BUILTIN_LIST_H(V)                                                 \
-  V(LoadIC_Slow,                    LOAD_IC, Code::kNoExtraICState)       \
-  V(KeyedLoadIC_Slow,               KEYED_LOAD_IC, Code::kNoExtraICState) \
-  V(StoreIC_Slow,                   STORE_IC, Code::kNoExtraICState)      \
-  V(StoreIC_Slow_Strict,            STORE_IC, kStrictMode)                \
-  V(KeyedStoreIC_Slow,              KEYED_STORE_IC, Code::kNoExtraICState)\
-  V(KeyedStoreIC_Slow_Strict,       KEYED_STORE_IC, kStrictMode)          \
-  V(LoadIC_Normal,                  LOAD_IC, Code::kNoExtraICState)       \
-  V(StoreIC_Normal,                 STORE_IC, Code::kNoExtraICState)      \
-  V(StoreIC_Normal_Strict,          STORE_IC, kStrictMode)
+#define BUILTIN_LIST_H(V)                                               \
+  V(LoadIC_Slow,                    LOAD_IC)                            \
+  V(KeyedLoadIC_Slow,               KEYED_LOAD_IC)                      \
+  V(StoreIC_Slow,                   STORE_IC)                           \
+  V(KeyedStoreIC_Slow,              KEYED_STORE_IC)                     \
+  V(LoadIC_Normal,                  LOAD_IC)                            \
+  V(StoreIC_Normal,                 STORE_IC)
 
 #ifdef ENABLE_DEBUGGER_SUPPORT
 // Define list of builtins used by the debugger implemented in assembly.
 #define BUILTIN_LIST_DEBUG_A(V)                                               \
   V(Return_DebugBreak,                         BUILTIN, DEBUG_STUB,           \
                                                DEBUG_BREAK)                   \
   V(CallFunctionStub_DebugBreak,               BUILTIN, DEBUG_STUB,           \
                                                DEBUG_BREAK)                   \
   V(CallFunctionStub_Recording_DebugBreak,     BUILTIN, DEBUG_STUB,           \
                                                DEBUG_BREAK)                   \
@@ skipping 68 matching lines @@
 
   // Garbage collection support.
   void IterateBuiltins(ObjectVisitor* v);
 
   // Disassembler support.
   const char* Lookup(byte* pc);
 
   enum Name {
 #define DEF_ENUM_C(name, ignore) k##name,
 #define DEF_ENUM_A(name, kind, state, extra) k##name,
-#define DEF_ENUM_H(name, kind, extra) k##name,
+#define DEF_ENUM_H(name, kind) k##name,
     BUILTIN_LIST_C(DEF_ENUM_C)
     BUILTIN_LIST_A(DEF_ENUM_A)
     BUILTIN_LIST_H(DEF_ENUM_H)
     BUILTIN_LIST_DEBUG_A(DEF_ENUM_A)
 #undef DEF_ENUM_C
 #undef DEF_ENUM_A
     builtin_count
   };
 
   enum CFunctionId {
 #define DEF_ENUM_C(name, ignore) c_##name,
     BUILTIN_LIST_C(DEF_ENUM_C)
 #undef DEF_ENUM_C
     cfunction_count
   };
 
   enum JavaScript {
 #define DEF_ENUM(name, ignore) name,
     BUILTINS_LIST_JS(DEF_ENUM)
 #undef DEF_ENUM
     id_count
   };
 
 #define DECLARE_BUILTIN_ACCESSOR_C(name, ignore) Handle<Code> name();
 #define DECLARE_BUILTIN_ACCESSOR_A(name, kind, state, extra) \
   Handle<Code> name();
-#define DECLARE_BUILTIN_ACCESSOR_H(name, kind, extra) Handle<Code> name();
+#define DECLARE_BUILTIN_ACCESSOR_H(name, kind) Handle<Code> name();
   BUILTIN_LIST_C(DECLARE_BUILTIN_ACCESSOR_C)
   BUILTIN_LIST_A(DECLARE_BUILTIN_ACCESSOR_A)
   BUILTIN_LIST_H(DECLARE_BUILTIN_ACCESSOR_H)
   BUILTIN_LIST_DEBUG_A(DECLARE_BUILTIN_ACCESSOR_A)
 #undef DECLARE_BUILTIN_ACCESSOR_C
 #undef DECLARE_BUILTIN_ACCESSOR_A
 
   Code* builtin(Name name) {
     // Code::cast cannot be used here since we access builtins
     // during the marking phase of mark sweep. See IC::Clear.
@@ skipping 82 matching lines @@
 
   friend class BuiltinFunctionTable;
   friend class Isolate;
 
   DISALLOW_COPY_AND_ASSIGN(Builtins);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_BUILTINS_H_