handling of pointer to memberfunction

[Martin v. Loewis]

> for function overloading, a pointer to a memberfunctionpointer is
> considered to be of the same type as a const pointer to a
> memberfunctionpointer.

Thanks for your bug report. The mainline compiler (2.96 20000430
(experimental)) compiles this without problems, so the bug appears to
be fixed.

Regards,
Martin