Introduce LanguageMode, drop StrictMode.

src/code-factory.cc

 // 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.
 
 #include "src/v8.h"
 
 #include "src/bootstrapper.h"
 #include "src/code-factory.h"
 #include "src/ic/ic.h"
 
@@ skipping 48 matching lines @@
 // static
 Callable CodeFactory::CallICInOptimizedCode(Isolate* isolate, int argc,
                                             CallICState::CallType call_type) {
   return Callable(
       CallIC::initialize_stub_in_optimized_code(isolate, argc, call_type),
       CallFunctionWithFeedbackAndVectorDescriptor(isolate));
 }
 
 
 // static
-Callable CodeFactory::StoreIC(Isolate* isolate, StrictMode mode) {
-  return Callable(StoreIC::initialize_stub(isolate, mode),
+Callable CodeFactory::StoreIC(Isolate* isolate, LanguageMode language_mode) {
+  return Callable(StoreIC::initialize_stub(isolate, language_mode),
                   StoreDescriptor(isolate));
 }
 
 
 // static
-Callable CodeFactory::KeyedStoreIC(Isolate* isolate, StrictMode mode) {
-  Handle<Code> ic = mode == SLOPPY
-                        ? isolate->builtins()->KeyedStoreIC_Initialize()
-                        : isolate->builtins()->KeyedStoreIC_Initialize_Strict();
+Callable CodeFactory::KeyedStoreIC(Isolate* isolate,
+                                   LanguageMode language_mode) {
+  Handle<Code> ic = is_strict(language_mode)
+                        ? isolate->builtins()->KeyedStoreIC_Initialize_Strict()
+                        : isolate->builtins()->KeyedStoreIC_Initialize();
   return Callable(ic, StoreDescriptor(isolate));
 }
 
 
 // static
 Callable CodeFactory::CompareIC(Isolate* isolate, Token::Value op) {
   Handle<Code> code = CompareIC::GetUninitialized(isolate, op);
   return Callable(code, BinaryOpDescriptor(isolate));
 }
 
@@ skipping 39 matching lines @@
 
 // static
 Callable CodeFactory::CallFunction(Isolate* isolate, int argc,
                                    CallFunctionFlags flags) {
   CallFunctionStub stub(isolate, argc, flags);
   return Callable(stub.GetCode(), stub.GetCallInterfaceDescriptor());
 }
 
 }  // namespace internal
 }  // namespace v8