5021007 revision 1.1 
15.021007
2OpHAS_SIBLING                  # U
3OpSIBLING                      # U
4PadnameUTF8                    # E
5is_invariant_string            # U
6newPADNAMELIST                 # U
7newPADNAMEouter                # U
8newPADNAMEpvn                  # U
9newUNOP_AUX                    # E
10padnamelist_fetch              # U
11padnamelist_store              # U
12