[webkit-reviews] review requested: [Bug 21732] improve performance by eliminating JSValue as a base class for JSCell : [Attachment 24491] patch for step 1

[bugzilla-daemon at webkit.org]

Darin Adler <darin at apple.com> has asked  for review:
Bug 21732: improve performance by eliminating JSValue as a base class for
JSCell
https://bugs.webkit.org/show_bug.cgi?id=21732

Attachment 24491: patch for step 1
https://bugs.webkit.org/attachment.cgi?id=24491&action=edit