Class methods should be non enumerable

src/objects.cc

 // Copyright 2013 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 <sstream>
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
 #include "src/allocation-site-scopes.h"
@@ skipping 12699 matching lines @@
                                           index, value, language_mode);
   }
   return JSObject::SetElement(Handle<JSObject>::cast(object), index, value,
                               attributes, language_mode);
 }
 
 
 MaybeHandle<Object> JSObject::SetOwnElement(Handle<JSObject> object,
                                             uint32_t index,
                                             Handle<Object> value,
+                                            PropertyAttributes attributes,
                                             LanguageMode language_mode) {
   DCHECK(!object->HasExternalArrayElements());
-  return JSObject::SetElement(object, index, value, NONE, language_mode, false);
+  return JSObject::SetElement(object, index, value, attributes, language_mode,
+                              false);
 }
 
 
 MaybeHandle<Object> JSObject::SetElement(Handle<JSObject> object,
                                          uint32_t index, Handle<Object> value,
                                          PropertyAttributes attributes,
                                          LanguageMode language_mode,
                                          bool check_prototype,
                                          SetPropertyMode set_mode) {
   Isolate* isolate = object->GetIsolate();
@@ skipping 4140 matching lines @@
   Handle<DependentCode> codes =
       DependentCode::Insert(handle(cell->dependent_code(), info->isolate()),
                             DependentCode::kPropertyCellChangedGroup,
                             info->object_wrapper());
   if (*codes != cell->dependent_code()) cell->set_dependent_code(*codes);
   info->dependencies(DependentCode::kPropertyCellChangedGroup)->Add(
       cell, info->zone());
 }
 
 } }  // namespace v8::internal