Add 64-bit specializations for WTF::atomicIncrement and WTF::atomicDecrement These are needed for WK2 code that might is nominally cross platform. I only know how to add the specializations for Mac, so anyone adopting code that uses them going forward will have to provide their own specializations.
Created attachment 175020 [details] Patch v1
http://trac.webkit.org/changeset/135186