composition now mentions how to work around imported methods not being
recognized. Reported by Michael Schwern. Fixes RT 60583. (doy)
+ * class_type and role_type will now throw errors if you attempt to use them
+ to override existing types, just like type and subtype have always done.
+ (doy)
+
+ * Implicitly creating class or role types by using them as the 'isa' or
+ 'does' parameter to attribute construction will now register the type. This
+ means that it cannot later be redefined as something else. (doy)
+
[OTHER]
* The Class::MOP::load_class and Class::MOP::is_class_loaded subroutines are