Introduce LanguageMode, drop StrictMode.

src/compiler/js-generic-lowering.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/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/compiler/common-operator.h"
 #include "src/compiler/js-generic-lowering.h"
 #include "src/compiler/machine-operator.h"
 #include "src/compiler/node-aux-data-inl.h"
@@ skipping 269 matching lines @@
   PatchInsertInput(node, 1, jsgraph()->HeapConstant(p.name()));
   if (FLAG_vector_ics) {
     PatchInsertInput(node, 2, jsgraph()->SmiConstant(p.feedback().index()));
     PatchInsertInput(node, 3, jsgraph()->HeapConstant(p.feedback().vector()));
   }
   ReplaceWithStubCall(node, callable, CallDescriptor::kPatchableCallSite);
 }
 
 
 void JSGenericLowering::LowerJSStoreProperty(Node* node) {
-  StrictMode strict_mode = OpParameter<StrictMode>(node);
-  Callable callable = CodeFactory::KeyedStoreIC(isolate(), strict_mode);
+  LanguageMode language_mode = OpParameter<LanguageMode>(node);
+  Callable callable = CodeFactory::KeyedStoreIC(isolate(), language_mode);
   ReplaceWithStubCall(node, callable, CallDescriptor::kPatchableCallSite);
 }
 
 
 void JSGenericLowering::LowerJSStoreNamed(Node* node) {
   const StoreNamedParameters& p = StoreNamedParametersOf(node->op());
-  Callable callable = CodeFactory::StoreIC(isolate(), p.strict_mode());
+  Callable callable = CodeFactory::StoreIC(isolate(), p.language_mode());
   PatchInsertInput(node, 1, jsgraph()->HeapConstant(p.name()));
   ReplaceWithStubCall(node, callable, CallDescriptor::kPatchableCallSite);
 }
 
 
 void JSGenericLowering::LowerJSDeleteProperty(Node* node) {
-  StrictMode strict_mode = OpParameter<StrictMode>(node);
+  LanguageMode language_mode = OpParameter<LanguageMode>(node);
   ReplaceWithBuiltinCall(node, Builtins::DELETE, 3);
-  PatchInsertInput(node, 4, jsgraph()->SmiConstant(strict_mode));
+  PatchInsertInput(node, 4, jsgraph()->SmiConstant(language_mode));
 }
 
 
 void JSGenericLowering::LowerJSHasProperty(Node* node) {
   ReplaceWithBuiltinCall(node, Builtins::IN, 2);
 }
 
 
 void JSGenericLowering::LowerJSInstanceOf(Node* node) {
   InstanceofStub::Flags flags = static_cast<InstanceofStub::Flags>(
@@ skipping 117 matching lines @@
 
 
 void JSGenericLowering::LowerJSCallRuntime(Node* node) {
   const CallRuntimeParameters& p = CallRuntimeParametersOf(node->op());
   ReplaceWithRuntimeCall(node, p.id(), static_cast<int>(p.arity()));
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8