It calls a builtin, which, can stack overflow. Theoretically, can OOM too
Created attachment 405332 [details]
Comment on attachment 405332 [details]
r=me if EWS gets green.
Created attachment 405364 [details]
patch for landing
Committed r264992: <https://trac.webkit.org/changeset/264992>
All reviewed patches have been landed. Closing bug and clearing flags on attachment 405364 [details].