Now ES6 Symbol is exposed and Symbol.unscopables is implemented. So we can implement {Array, Map, Set}.prototype.values method.
Created attachment 250587 [details] Patch
Created attachment 250588 [details] Patch
Comment on attachment 250588 [details] Patch Clearing flags on attachment: 250588 Committed r182668: <http://trac.webkit.org/changeset/182668>
All reviewed patches have been landed. Closing bug.