3 (find-class 'warning) gives an object of type STRUCTURE-CLASS.
4 However, a WARNING is not a STRUCTURE-OBJECT, but a CONDITION-OBJECT,
5 which contradicts the requirement that instances of STRUCTURE-CLASS be
6 STRUCTURE-OBJECTs. Fix this, probably by teaching PCL about
7 CONDITION-CLASS analogously to STRUCTURE-CLASS.
11 [ fixed the (CLASS-PROTOTYPE (FIND-CLASS 'NULL)) issue; more general
12 fix for other built-in-classes can be done in mainline post-merge ]
16 Now that a CL:CLASS is a real CLOS class, it might be worth giving
17 SB-PCL the SB-MOP nickname, since it now is in the region of
22 NIL is probably not a legal class name