PR was closed so we need rollback all changes. See https://github.com/tc39/ecma262/pull/884#issuecomment-305212494
Created attachment 311635 [details] Patch Rolling out
Comment on attachment 311635 [details] Patch r=me
Comment on attachment 311635 [details] Patch Clearing flags on attachment: 311635 Committed r217629: <http://trac.webkit.org/changeset/217629>
All reviewed patches have been landed. Closing bug.