See https://build.webkit.org/results/Apple%20iOS%209%20Simulator%20Release%20WK2%20(Tests)/r204164%20(7931)/results.html
It might be related to the same issue as Mac-WK2 for that test, see bug 160445
Created attachment 285409 [details] Patch for landing
Comment on attachment 285409 [details] Patch for landing Clearing flags on attachment: 285409 Committed r204165: <http://trac.webkit.org/changeset/204165>
All reviewed patches have been landed. Closing bug.