+ * minor incompatible change: (SETF CLASS-NAME) and (SETF
+ GENERIC-FUNCTION-NAME) are no longer generic functions, and
+ therefore are not customizeable by user code (as seems to be at
+ least permitted and maybe required by AMOP). As a consolation,
+ however, the SBCL implementation of these functions now calls
+ REINITIALIZE-INSTANCE as specified by AMOP.
+ * bug fix: REINITIALIZE-INSTANCE on generic functions calls
+ COMPUTE-DISCRIMINATING-FUNCTION (almost) unconditionally, as
+ specified by AMOP.