12.14 CLOS/MOP changes

12.14.1 class-prototype for built-in-class

The MOP function hcl:class-prototype is now implemented for the class cl:built-in-class. An error is signaled if the class has no instances of its own, for example cl:integer whose instances are either cl:fixnum or cl:bignum.

12.14.2 short-float is no longer a class on 64-bit

The class named cl:short-float has been removed from 64-bit LispWorks because the type cl:short-float is an alias for cl:single-float in 64-bit LispWorks.