[Cocoa] Get rid of WK_NULLABLE_SPECIFIER now that all supported compilers understand _Nullable
Created attachment 282565 [details] Use _Nullable
Comment on attachment 282565 [details] Use _Nullable Clearing flags on attachment: 282565 Committed r202746: <http://trac.webkit.org/changeset/202746>
All reviewed patches have been landed. Closing bug.