* lisp/emacs-lisp/cl-generic.el (cl-defmethod): Denote the
edebug spec part for qualifiers as [&rest atom], per
http://lists.gnu.org/archive/html/emacs-devel/2017-05/msg00053.html.
(&define ; this means we are defining something
[&or symbolp ("setf" symbolp)]
;; ^^ This is the methods symbol
- [ &optional keywordp ; this is key :before etc
- &optional stringp ] ; :extra can be followed by a string
+ [ &rest atom ] ; Multiple qualifiers are allowed.
+ ; Like in CLOS spec, we support
+ ; any non-list values.
listp ; arguments
[ &optional stringp ] ; documentation string
def-body))) ; part to be debugged