DEFAULT-SUPERCLASSES needs access to both R1 and R2 so don't define it using DEFUN.
DEFAULT-SUPERCLASSES needs access to both R1 and R2 so don't define it using DEFUN.

clasp-developers/SICL,clasp-developers/SICL,vtomole/SICL,clasp-developers/SICL,vtomole/SICL,clasp-developers/SICL,vtomole/SICL,vtomole/SICL