Fix handling of ClassObject#superclass
Fix handling of ClassObject#superclass

herosky/yard,ohai/yard,travis-repos/yard,lsegal/yard,travis-repos/yard,alexdowad/yard,amclain/yard,ohai/yard,alexdowad/yard,jreinert/yard,herosky/yard,thomthom/yard,iankronquist/yard,iankronquist/yard,jreinert/yard,thomthom/yard,herosky/yard,lsegal/yard,thomthom/yard,amclain/yard,ohai/yard,jreinert/yard,amclain/yard,lsegal/yard,alexdowad/yard,iankronquist/yard