Properly detect that an object inherits from TClass (and thus avoid mis-using it) (see http://root.cern.ch/phpBB3/viewtopic.php?f=3&t=12477&start=15#p53957)
Properly detect that an object inherits from TClass (and thus avoid mis-using it) (see http://root.cern.ch/phpBB3/viewtopic.php?f=3&t=12477&start=15#p53957)


git-svn-id: acec3fd5b7ea1eb9e79d6329d318e8118ee2e14f@38685 27541ba8-7e3a-0410-8455-c3a389f83636

bbockelm/root-historical,bbockelm/root-historical,bbockelm/root-historical,bbockelm/root-historical,bbockelm/root-historical,bbockelm/root-historical,bbockelm/root-historical