http://trac.webkit.org/browser/trunk/Source/JavaScriptCore/features.json?rev=182134 links to https://developer.mozilla.org/en-US/docs/Mozilla/JavaScript_code_modules/Promise.jsm/Promise (on #L34); this is for Promise.jsm, one of Mozilla's set of APIs. For ES6 Promises, it should refer to https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise instead.
Created attachment 250162 [details] Patch
Oh, thanks!
Comment on attachment 250162 [details] Patch Clearing flags on attachment: 250162 Committed r182368: <http://trac.webkit.org/changeset/182368>
All reviewed patches have been landed. Closing bug.