[ES6] Implement Reflect.preventExtensions
Created attachment 257580 [details] Patch
Created attachment 257581 [details] Patch
Comment on attachment 257581 [details] Patch Thanks for your review!
Comment on attachment 257581 [details] Patch Clearing flags on attachment: 257581 Committed r187479: <http://trac.webkit.org/changeset/187479>
All reviewed patches have been landed. Closing bug.