dg-skip-if in Fortran testsuite

[Paul Koning]

I'm looking at some testsuite failures that are caused by address space exceeded in my small target (pdp11).

For C testsuites, the answer is simple: drop in something like this:

! { dg-skip-if "Array too big" { "pdp11-*-*" } }

But the Fortran test suite doesn't pay attention to that.  It looks like this is because target-supports-dg.exp isn't included from fortran-torture.exp.  But simply including it there doesn't work (I get a complaint from Dejagnu that doesn't mean much to me).

Any suggestions on how to do this?  There are only a couple of test cases where this is needed, but it would be nice to have a clean test run.

	paul