Return T if the object cannot be externalized using the lisp
printer and we should rather use MAKE-LOAD-FORM.

Prepare a generic function so that its discriminating function will not have
to be recompiled very much when called with pre-specified specializers.
GENERIC-FUNCTION is a generic function. LISTS-OF-SPECIALIZER-DESIGNATORS is a
list of lists of specializer designator. Each inner list should have as many
elements as the generic function has specializable (i.e. required) arguments.
A specializer designator is either a specializer, or a symbol naming a class, or
a list (EQL object) - just like DEFMETHOD.

Call the given method. METHOD-ARGUMENTS are the unevaluated arguments
passed in a CALL-METHOD form after the method.
ARGUMENTS is a list of forms that will evaluate to a spreadable
argument list designator.