A bunch of performance tests are failing after http://trac.webkit.org/changeset/183954 According to ap on irc, "a new class in WK1 has the same name as one in WK2, so dyld logs to stderr on loads, which breaks all the perf tests (and possibly more than just the tests)"
Created attachment 252731 [details] Patch
http://trac.webkit.org/changeset/183999 Thanks Alexey!
<rdar://problem/21067222>