Currently, the implementation doesn't increment the iterator enough times to go through all arguments. This never got done when the other patch that incremented the number of arguments the opcode receives was landed.
Created attachment 236906 [details] patch Fixes the bug.
Created attachment 236907 [details] patch Fix problem w/ above patch's ChangeLog incorrect spacing for bug description.
Comment on attachment 236907 [details] patch Clearing flags on attachment: 236907 Committed r172822: <http://trac.webkit.org/changeset/172822>
All reviewed patches have been landed. Closing bug.