Patch forthcoming.
Created attachment 288279 [details] the patch
Created attachment 288284 [details] the patch
Comment on attachment 288284 [details] the patch View in context: https://bugs.webkit.org/attachment.cgi?id=288284&action=review > Source/JavaScriptCore/ChangeLog:8 > + This moves the buffer out of CopiedSpace and into Auxiliary MarkedSpace. Also mention that you're removing MapData since it's no longer used.
Landed in https://trac.webkit.org/changeset/205654