Patch to handle gnat_demangling

[Hans-Peter Nilsson]

On Tue, 21 Nov 2000, H . J . Lu wrote:
> Since Ada (gnat) is supported now, should we handle it in main ()?

I would think so. :-)

If you have bootstrapped and tested GCC with this patch, then please
commit it to gcc and src.

brgds, H-P