[ESNext] Support hashbang.
Created attachment 376619 [details] Patch
Comment on attachment 376619 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=376619&action=review r=me > JSTests/stress/hashbang.js:20 > +shouldThrowSyntaxError(' #!foo'); Can you also add a case for '\n#!foo'?
Created attachment 376624 [details] Patch for landing
Comment on attachment 376624 [details] Patch for landing Clearing flags on attachment: 376624 Committed r248826: <https://trac.webkit.org/changeset/248826>
All reviewed patches have been landed. Closing bug.
<rdar://problem/54435770>