Introduce LanguageMode, drop StrictMode.

src/full-codegen.cc

 // 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.
 
 #include "src/v8.h"
 
 #include "src/ast.h"
 #include "src/ast-numbering.h"
 #include "src/code-factory.h"
 #include "src/codegen.h"
@@ skipping 429 matching lines @@
 
 
 void FullCodeGenerator::CallLoadIC(ContextualMode contextual_mode,
                                    TypeFeedbackId id) {
   Handle<Code> ic = CodeFactory::LoadIC(isolate(), contextual_mode).code();
   CallIC(ic, id);
 }
 
 
 void FullCodeGenerator::CallStoreIC(TypeFeedbackId id) {
-  Handle<Code> ic = CodeFactory::StoreIC(isolate(), strict_mode()).code();
+  Handle<Code> ic = CodeFactory::StoreIC(isolate(), language_mode()).code();
   CallIC(ic, id);
 }
 
 
 void FullCodeGenerator::RecordJSReturnSite(Call* call) {
   // We record the offset of the function return so we can rebuild the frame
   // if the function was inlined, i.e., this is the return address in the
   // inlined function's frame.
   //
   // The state is ignored.  We defensively set it to TOS_REG, which is the
@@ skipping 346 matching lines @@
   interface->Allocate(scope->module_var()->index());
   int index = module_index_++;
 
   Handle<ModuleInfo> description =
       ModuleInfo::Create(isolate(), interface, scope_);
   modules_->set(index, *description);
 }
 
 
 int FullCodeGenerator::DeclareGlobalsFlags() {
-  DCHECK(DeclareGlobalsStrictMode::is_valid(strict_mode()));
+  DCHECK(DeclareGlobalsLanguageMode::is_valid(language_mode()));
   return DeclareGlobalsEvalFlag::encode(is_eval()) |
-      DeclareGlobalsNativeFlag::encode(is_native()) |
-      DeclareGlobalsStrictMode::encode(strict_mode());
+         DeclareGlobalsNativeFlag::encode(is_native()) |
+         DeclareGlobalsLanguageMode::encode(language_mode());
 }
 
 
 void FullCodeGenerator::SetFunctionPosition(FunctionLiteral* fun) {
   CodeGenerator::RecordPositions(masm_, fun->start_position());
 }
 
 
 void FullCodeGenerator::SetReturnPosition(FunctionLiteral* fun) {
   CodeGenerator::RecordPositions(masm_, fun->end_position() - 1);
@@ skipping 997 matching lines @@
   }
   codegen_->PrepareForBailoutForId(exit_id_, NO_REGISTERS);
   codegen_->scope_ = saved_scope_;
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal