Testsuite tweak - properly bail out of asm-source.exp

[Michael Snyder]

Zack Weinberg wrote:
> 
> On Wed, Apr 17, 2002 at 10:59:07PM -0400, Andrew Cagney wrote:
> > See:
> >
> > 2001-11-09  Andrew Cagney  <ac131313@redhat.com>
> >
> > * gdb.asm/asm-source.exp: Supress file, instead of skip, when not
> > implemented.
> >
> > and, especially, the number of tests that have been contributed since
> > that change went in.
> 
> Okay, if it was deliberately done like that, I withdraw the patch

The Maintainer moves in mysterious ways...   ;-)