FileOpClass nature, depending on which of the new or old API entry points are used by a script. Relax the native-instance checks appropriately, as both types of object are stuffed with the same type of private data. r+sr=brendan, a=chase. git-svn-id: svn://10.0.0.236/trunk@172231 18797224-902f-48f8-a5cc-f745e15eee43