Add strong mode.

src/ic/ic.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_IC_H_
 #define V8_IC_H_
 
 #include "src/ic/ic-state.h"
 #include "src/macro-assembler.h"
 
@@ skipping 502 matching lines @@
  private:
   static void Clear(Isolate* isolate, Address address, Code* target,
                     ConstantPoolArray* constant_pool);
 
   friend class IC;
 };
 
 
 class StoreIC : public IC {
  public:
-  STATIC_ASSERT(i::LANGUAGE_END == 2);
-  class LanguageModeState : public BitField<LanguageMode, 1, 1> {};
+  STATIC_ASSERT(i::LANGUAGE_END == 3);
+  class LanguageModeState : public BitField<LanguageMode, 1, 2> {};
   static ExtraICState ComputeExtraICState(LanguageMode flag) {
     return LanguageModeState::encode(flag);
   }
   static LanguageMode GetLanguageMode(ExtraICState state) {
     return LanguageModeState::decode(state);
   }
 
   // For convenience, a statically declared encoding of strict mode extra
   // IC state.
   static const ExtraICState kStrictModeState = STRICT
@@ skipping 63 matching lines @@
 enum KeyedStoreCheckMap { kDontCheckMap, kCheckMap };
 
 
 enum KeyedStoreIncrementLength { kDontIncrementLength, kIncrementLength };
 
 
 class KeyedStoreIC : public StoreIC {
  public:
   // ExtraICState bits (building on IC)
   // ExtraICState bits
+  // When more language modes are added, these BitFields need to move too.
+  STATIC_ASSERT(i::LANGUAGE_END == 3);
   class ExtraICStateKeyedAccessStoreMode
-      : public BitField<KeyedAccessStoreMode, 2, 4> {};  // NOLINT
+      : public BitField<KeyedAccessStoreMode, 3, 4> {};  // NOLINT
 
-  class IcCheckTypeField : public BitField<IcCheckType, 6, 1> {};
+  class IcCheckTypeField : public BitField<IcCheckType, 7, 1> {};
 
   static ExtraICState ComputeExtraICState(LanguageMode flag,
                                           KeyedAccessStoreMode mode) {
     return LanguageModeState::encode(flag) |
            ExtraICStateKeyedAccessStoreMode::encode(mode) |
            IcCheckTypeField::encode(ELEMENT);
   }
 
   static KeyedAccessStoreMode GetKeyedAccessStoreMode(
       ExtraICState extra_state) {
@@ skipping 148 matching lines @@
 
 // Support functions for interceptor handlers.
 DECLARE_RUNTIME_FUNCTION(LoadPropertyWithInterceptorOnly);
 DECLARE_RUNTIME_FUNCTION(LoadPropertyWithInterceptor);
 DECLARE_RUNTIME_FUNCTION(LoadElementWithInterceptor);
 DECLARE_RUNTIME_FUNCTION(StorePropertyWithInterceptor);
 }
 }  // namespace v8::internal
 
 #endif  // V8_IC_H_