[api] Add DefineProperty() method that skips interceptors.

src/builtins/builtins-object.cc

Index: src/builtins/builtins-object.cc
diff --git a/src/builtins/builtins-object.cc b/src/builtins/builtins-object.cc
index 8be615013c9ee8b17739790f3797e975361eff43..e2837031808e74be3324b2b1cb06988a38777c8c 100644
--- a/src/builtins/builtins-object.cc
+++ b/src/builtins/builtins-object.cc
@@ -79,6 +79,17 @@ BUILTIN(ObjectDefineProperty) {
   return JSReceiver::DefineProperty(isolate, target, key, attributes);
 }
 
+BUILTIN(ObjectDefinePropertyWithoutInterceptors) {

[Franzi, 2017/04/12 08:58:17]

Do we need this builtin?

+  HandleScope scope(isolate);
+  DCHECK_EQ(4, args.length());
+  Handle<Object> target = args.at(1);
+  Handle<Object> key = args.at(2);
+  Handle<Object> attributes = args.at(3);
+
+  return JSReceiver::DefinePropertyWithoutInterceptors(isolate, target, key,
+                                                       attributes);
+}
+
 namespace {
 
 template <AccessorComponent which_accessor>