prune.exp (prune_gcc_output): Prune "could not create compact unwind for" warnings.

prune.exp (prune_gcc_output): Prune "could not create compact unwind for" warnings.

gcc:
2011-03-21  Jack Howarth  <howarth@bromo.med.uc.edu>

	* lib/prune.exp (prune_gcc_output): Prune "could not create
	compact unwind for" warnings.

libstdc++:
2011-03-21  Jack Howarth  <howarth@bromo.med.uc.edu>

	* testsuite/lib/prune.exp (libstdc++-dg-prune): Prune "could not
	create compact unwind for" warnings.

From-SVN: r171263