[webkit-reviews] review requested: [Bug 164199] [WTF] Import std::optional reference implementation as WTF::Optional : [Attachment 295451] Patch for landing

[bugzilla-daemon at webkit.org]

Yusuke Suzuki <utatane.tea at gmail.com> has asked  for review:
Bug 164199: [WTF] Import std::optional reference implementation as
WTF::Optional
https://bugs.webkit.org/show_bug.cgi?id=164199

Attachment 295451: Patch for landing

https://bugs.webkit.org/attachment.cgi?id=295451&action=review