15:21:16flip214When changing a class to a struct I get an SBCL error: https://paste.debian.net/hidden/251058fb/
15:22:35flip214and another short question: functions returning a structure get type derivation (with *derive-function-types*); if the last form is a (MAKE-INSTANCE 'class-name ...) they resolve to a type of T.
15:23:00flip214Is there a chance to get a type derivation for classes, too?