add-method

[Linda DeMichiel <LGD@SAIL.Stanford.EDU>]

Now that we've moved (make-instance 'standard-method ...) to the
meta-object protocol chapter, I'd like to suggest that we move
add-method there as well.  add-method no longer seems to belong in
with the programmer interface functions, since there is no longer a
programmer interface level way of creating its second argument (a
method object).  (The only way one can currently get one's hands on
a method object using the programmer interface level functions is
to call get-method on another generic function, or, of course, to
call defmethod).

-lgd