[ESnext] Implement Object Rest

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 f216508c23c3952d8b67a000f8636cdfff34120a..c03556412484d41383ebad1b8c4bbf7a80477115 100644
--- a/src/builtins/builtins-object.cc
+++ b/src/builtins/builtins-object.cc
@@ -84,9 +84,8 @@ BUILTIN(ObjectAssign) {
   // 4. For each element nextSource of sources, in ascending index order,
   for (int i = 2; i < args.length(); ++i) {
     Handle<Object> next_source = args.at(i);
-    MAYBE_RETURN(
-        JSReceiver::SetOrCopyDataProperties(isolate, to, next_source, true),
-        isolate->heap()->exception());
+    MAYBE_RETURN(JSReceiver::SetOrCopyDataProperties(isolate, to, next_source),
+                 isolate->heap()->exception());
   }
   // 5. Return to.
   return *to;