Class methods should be non enumerable

src/objects.h

 // Copyright 2012 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.
 
 #ifndef V8_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 
 #include "src/allocation.h"
@@ skipping 1095 matching lines @@
 
   // Convert to a JSObject if needed.
   // native_context is used when creating wrapper object.
   static inline MaybeHandle<JSReceiver> ToObject(Isolate* isolate,
                                                  Handle<Object> object);
   static MaybeHandle<JSReceiver> ToObject(Isolate* isolate,
                                           Handle<Object> object,
                                           Handle<Context> context);
 
   // Converts this to a Smi if possible.
-  static MUST_USE_RESULT inline MaybeHandle<Smi> ToSmi(Isolate* isolate,
+  MUST_USE_RESULT static inline MaybeHandle<Smi> ToSmi(Isolate* isolate,
                                                        Handle<Object> object);
 
   MUST_USE_RESULT static MaybeHandle<Object> GetProperty(LookupIterator* it);
 
   // Implementation of [[Put]], ECMA-262 5th edition, section 8.12.5.
   MUST_USE_RESULT static MaybeHandle<Object> SetProperty(
       Handle<Object> object, Handle<Name> key, Handle<Object> value,
       StrictMode strict_mode,
       StoreFromKeyed store_mode = MAY_BE_STORE_FROM_KEYED);
 
@@ skipping 804 matching lines @@
   MUST_USE_RESULT static MaybeHandle<AccessorPair> GetOwnElementAccessorPair(
       Handle<JSObject> object, uint32_t index);
 
   MUST_USE_RESULT static MaybeHandle<Object> SetFastElement(
       Handle<JSObject> object,
       uint32_t index,
       Handle<Object> value,
       StrictMode strict_mode,
       bool check_prototype);
 
+  MUST_USE_RESULT static inline MaybeHandle<Object> SetOwnElement(
+      Handle<JSObject> object, uint32_t index, Handle<Object> value,
+      StrictMode strict_mode);
+
   MUST_USE_RESULT static MaybeHandle<Object> SetOwnElement(
-      Handle<JSObject> object,
-      uint32_t index,
-      Handle<Object> value,
-      StrictMode strict_mode);
+      Handle<JSObject> object, uint32_t index, Handle<Object> value,
+      PropertyAttributes attributes, StrictMode strict_mode);
 
   // Empty handle is returned if the element cannot be set to the given value.
   MUST_USE_RESULT static MaybeHandle<Object> SetElement(
       Handle<JSObject> object,
       uint32_t index,
       Handle<Object> value,
       PropertyAttributes attributes,
       StrictMode strict_mode,
       bool check_prototype = true,
       SetPropertyMode set_mode = SET_PROPERTY);
@@ skipping 9020 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_