Remove strong mode support from property loads.

src/runtime/runtime-object.cc

Index: src/runtime/runtime-object.cc
diff --git a/src/runtime/runtime-object.cc b/src/runtime/runtime-object.cc
index 7c409d06852c38bea8fadaf0c017a1b66e5520ae..f0fe167aec31b385b5c4448dbf2f5271d8368e56 100644
--- a/src/runtime/runtime-object.cc
+++ b/src/runtime/runtime-object.cc
@@ -15,11 +15,9 @@
 namespace v8 {
 namespace internal {
 
-
 MaybeHandle<Object> Runtime::GetObjectProperty(Isolate* isolate,
                                                Handle<Object> object,
-                                               Handle<Object> key,
-                                               LanguageMode language_mode) {
+                                               Handle<Object> key) {
   if (object->IsUndefined() || object->IsNull()) {
     THROW_NEW_ERROR(
         isolate,
@@ -32,14 +30,12 @@ MaybeHandle<Object> Runtime::GetObjectProperty(Isolate* isolate,
       LookupIterator::PropertyOrElement(isolate, object, key, &success);
   if (!success) return MaybeHandle<Object>();
 
-  return Object::GetProperty(&it, language_mode);
+  return Object::GetProperty(&it);
 }
 
-
 static MaybeHandle<Object> KeyedGetObjectProperty(Isolate* isolate,
                                                   Handle<Object> receiver_obj,
-                                                  Handle<Object> key_obj,
-                                                  LanguageMode language_mode) {
+                                                  Handle<Object> key_obj) {
   // Fast cases for getting named properties of the receiver JSObject
   // itself.
   //
@@ -113,8 +109,7 @@ static MaybeHandle<Object> KeyedGetObjectProperty(Isolate* isolate,
   }
 
   // Fall back to GetObjectProperty.
-  return Runtime::GetObjectProperty(isolate, receiver_obj, key_obj,
-                                    language_mode);
+  return Runtime::GetObjectProperty(isolate, receiver_obj, key_obj);
 }
 
 
@@ -386,23 +381,7 @@ RUNTIME_FUNCTION(Runtime_GetProperty) {
 
   Handle<Object> result;
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
-      isolate, result,
-      Runtime::GetObjectProperty(isolate, object, key, SLOPPY));
-  return *result;
-}
-
-
-RUNTIME_FUNCTION(Runtime_GetPropertyStrong) {
-  HandleScope scope(isolate);
-  DCHECK(args.length() == 2);
-
-  CONVERT_ARG_HANDLE_CHECKED(Object, object, 0);
-  CONVERT_ARG_HANDLE_CHECKED(Object, key, 1);
-
-  Handle<Object> result;
-  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
-      isolate, result,
-      Runtime::GetObjectProperty(isolate, object, key, STRONG));
+      isolate, result, Runtime::GetObjectProperty(isolate, object, key));
   return *result;
 }
 
@@ -417,23 +396,7 @@ RUNTIME_FUNCTION(Runtime_KeyedGetProperty) {
 
   Handle<Object> result;
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
-      isolate, result,
-      KeyedGetObjectProperty(isolate, receiver_obj, key_obj, SLOPPY));
-  return *result;
-}
-
-
-RUNTIME_FUNCTION(Runtime_KeyedGetPropertyStrong) {
-  HandleScope scope(isolate);
-  DCHECK(args.length() == 2);
-
-  CONVERT_ARG_HANDLE_CHECKED(Object, receiver_obj, 0);
-  CONVERT_ARG_HANDLE_CHECKED(Object, key_obj, 1);
-
-  Handle<Object> result;
-  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
-      isolate, result,
-      KeyedGetObjectProperty(isolate, receiver_obj, key_obj, STRONG));
+      isolate, result, KeyedGetObjectProperty(isolate, receiver_obj, key_obj));
   return *result;
 }