Patch coming.
Created attachment 297719 [details] proposed patch.
Comment on attachment 297719 [details] proposed patch. r=me. Semi-related nit but I feel like that option should be named crash on throw.
Comment on attachment 297719 [details] proposed patch. Clearing flags on attachment: 297719 Committed r210139: <http://trac.webkit.org/changeset/210139>
All reviewed patches have been landed. Closing bug.