[webkit-reviews] review requested: [Bug 143303] Value assignment operator of Optional should be stricter : [Attachment 249914] patch

[bugzilla-daemon at webkit.org]

Antti Koivisto <koivisto at iki.fi> has asked  for review:
Bug 143303: Value assignment operator of Optional should be stricter
https://bugs.webkit.org/show_bug.cgi?id=143303

Attachment 249914: patch

https://bugs.webkit.org/attachment.cgi?id=249914&action=review