Introduce LanguageMode, drop StrictMode.

src/ic/ic-compiler.h

 // Copyright 2014 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_IC_COMPILER_H_
 #define V8_IC_IC_COMPILER_H_
 
 #include "src/ic/access-compiler.h"
 
 namespace v8 {
@@ skipping 21 matching lines @@
                                          int number_of_valid_maps,
                                          Handle<Name> name,
                                          ExtraICState extra_ic_state);
 
   // Keyed
   static Handle<Code> ComputeKeyedLoadMonomorphicHandler(
       Handle<Map> receiver_map);
   static Handle<Code> ComputeKeyedLoadMonomorphic(Handle<Map> receiver_map);
 
   static Handle<Code> ComputeKeyedStoreMonomorphic(
-      Handle<Map> receiver_map, StrictMode strict_mode,
+      Handle<Map> receiver_map, LanguageMode language_mode,
       KeyedAccessStoreMode store_mode);
   static Handle<Code> ComputeKeyedLoadPolymorphic(MapHandleList* receiver_maps);
   static Handle<Code> ComputeKeyedStorePolymorphic(
       MapHandleList* receiver_maps, KeyedAccessStoreMode store_mode,
-      StrictMode strict_mode);
+      LanguageMode language_mode);
 
   // Compare nil
   static Handle<Code> ComputeCompareNil(Handle<Map> receiver_map,
                                         CompareNilICStub* stub);
 
   // Helpers
   // TODO(verwaest): Move all uses of these helpers to the PropertyICCompiler
   // and make the helpers private.
   static void GenerateRuntimeSetProperty(MacroAssembler* masm,
-                                         StrictMode strict_mode);
+                                         LanguageMode language_mode);
 
 
  private:
   PropertyICCompiler(Isolate* isolate, Code::Kind kind,
                      ExtraICState extra_ic_state = kNoExtraICState,
                      CacheHolderFlag cache_holder = kCacheOnReceiver)
       : PropertyAccessCompiler(isolate, kind, cache_holder),
         extra_ic_state_(extra_ic_state) {}
 
   static Handle<Code> Find(Handle<Name> name, Handle<Map> stub_holder_map,
@@ skipping 47 matching lines @@
   }
 
   const ExtraICState extra_ic_state_;
 };
 
 
 }
 }  // namespace v8::internal
 
 #endif  // V8_IC_IC_COMPILER_H_