The JSC debug build is broken, at least for INTERPRETER=1 JIT=0 builds. Patch to be attached fixes it.
Created attachment 119064 [details] Patch
Comment on attachment 119064 [details] Patch Clearing flags on attachment: 119064 Committed r102706: <http://trac.webkit.org/changeset/102706>
All reviewed patches have been landed. Closing bug.