Introduce LanguageMode, drop StrictMode.

src/runtime/runtime-classes.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 <stdlib.h>
 #include <limits>
 
 #include "src/v8.h"
 
 #include "src/isolate-inl.h"
@@ skipping 263 matching lines @@
                                      Runtime::ToName(isolate, key));
   if (name->AsArrayIndex(&index)) {
     return LoadElementFromSuper(isolate, receiver, home_object, index);
   }
   return LoadFromSuper(isolate, receiver, home_object, name);
 }
 
 
 static Object* StoreToSuper(Isolate* isolate, Handle<JSObject> home_object,
                             Handle<Object> receiver, Handle<Name> name,
-                            Handle<Object> value, StrictMode strict_mode) {
+                            Handle<Object> value, LanguageMode language_mode) {
   if (home_object->IsAccessCheckNeeded() &&
       !isolate->MayNamedAccess(home_object, name, v8::ACCESS_SET)) {
     isolate->ReportFailedAccessCheck(home_object, v8::ACCESS_SET);
     RETURN_FAILURE_IF_SCHEDULED_EXCEPTION(isolate);
   }
 
   PrototypeIterator iter(isolate, home_object);
   Handle<Object> proto = PrototypeIterator::GetCurrent(iter);
   if (!proto->IsJSReceiver()) return isolate->heap()->undefined_value();
 
   LookupIterator it(receiver, name, Handle<JSReceiver>::cast(proto));
   Handle<Object> result;
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
       isolate, result,
-      Object::SetProperty(&it, value, strict_mode,
+      Object::SetProperty(&it, value, language_mode,
                           Object::CERTAINLY_NOT_STORE_FROM_KEYED,
                           Object::SUPER_PROPERTY));
   return *result;
 }
 
 
 static Object* StoreElementToSuper(Isolate* isolate,
                                    Handle<JSObject> home_object,
                                    Handle<Object> receiver, uint32_t index,
                                    Handle<Object> value,
-                                   StrictMode strict_mode) {
+                                   LanguageMode language_mode) {
   if (home_object->IsAccessCheckNeeded() &&
       !isolate->MayIndexedAccess(home_object, index, v8::ACCESS_SET)) {
     isolate->ReportFailedAccessCheck(home_object, v8::ACCESS_SET);
     RETURN_FAILURE_IF_SCHEDULED_EXCEPTION(isolate);
   }
 
   PrototypeIterator iter(isolate, home_object);
   Handle<Object> proto = PrototypeIterator::GetCurrent(iter);
   if (!proto->IsJSReceiver()) return isolate->heap()->undefined_value();
 
   Handle<Object> result;
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
       isolate, result,
       Object::SetElementWithReceiver(isolate, proto, receiver, index, value,
-                                     strict_mode));
+                                     language_mode));
   return *result;
 }
 
 
 RUNTIME_FUNCTION(Runtime_StoreToSuper_Strict) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 4);
   CONVERT_ARG_HANDLE_CHECKED(Object, receiver, 0);
   CONVERT_ARG_HANDLE_CHECKED(JSObject, home_object, 1);
   CONVERT_ARG_HANDLE_CHECKED(Name, name, 2);
@@ skipping 10 matching lines @@
   CONVERT_ARG_HANDLE_CHECKED(JSObject, home_object, 1);
   CONVERT_ARG_HANDLE_CHECKED(Name, name, 2);
   CONVERT_ARG_HANDLE_CHECKED(Object, value, 3);
 
   return StoreToSuper(isolate, home_object, receiver, name, value, SLOPPY);
 }
 
 
 static Object* StoreKeyedToSuper(Isolate* isolate, Handle<JSObject> home_object,
                                  Handle<Object> receiver, Handle<Object> key,
-                                 Handle<Object> value, StrictMode strict_mode) {
+                                 Handle<Object> value,
+                                 LanguageMode language_mode) {
   uint32_t index;
 
   if (key->ToArrayIndex(&index)) {
     return StoreElementToSuper(isolate, home_object, receiver, index, value,
-                               strict_mode);
+                               language_mode);
   }
   Handle<Name> name;
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, name,
                                      Runtime::ToName(isolate, key));
   if (name->AsArrayIndex(&index)) {
     return StoreElementToSuper(isolate, home_object, receiver, index, value,
-                               strict_mode);
+                               language_mode);
   }
-  return StoreToSuper(isolate, home_object, receiver, name, value, strict_mode);
+  return StoreToSuper(isolate, home_object, receiver, name, value,
+                      language_mode);
 }
 
 
 RUNTIME_FUNCTION(Runtime_StoreKeyedToSuper_Strict) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 4);
   CONVERT_ARG_HANDLE_CHECKED(Object, receiver, 0);
   CONVERT_ARG_HANDLE_CHECKED(JSObject, home_object, 1);
   CONVERT_ARG_HANDLE_CHECKED(Object, key, 2);
   CONVERT_ARG_HANDLE_CHECKED(Object, value, 3);
@@ skipping 54 matching lines @@
   }
 
   Handle<Object> result;
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
       isolate, result,
       Execution::Call(isolate, proto_function, receiver, argc, argv, false));
   return *result;
 }
 }
 }  // namespace v8::internal