Found possible bug in dynamic_cast

[Martin v. Loewis]

> the following simple program returns a non-zero exit status. As far as
> I can tell from the C++ standard (Note however that I have only the
> 1997 C++ Public Review Document and Stroustrups third edition
> available) it should return zero.

Thanks for your bug report. The mainline compiler (2.96 20000326
(experimental)) generates correct code, so the bug appears to be
fixed.

Regards,
Martin