Failures on RHEL-s390x-m64, branch master

[sergiodj+buildbot@sergiodj.net]

Buildslave:
	rhel-7_1-s390x-1

Full Build URL:
	<http://gdb-build.sergiodj.net/builders/RHEL-s390x-m64/builds/7348>

Commit(s) tested:
	f7c6f42310233479ea6339430b7c1ca1f9ec68e1

Author(s) (in the same order as the commits):
	Pedro Alves <palves@redhat.com>

Subject:
	Mark END_CATCH as ATTRIBUTE_NORETURN (-Wmaybe-uninitialized warnings)

Testsuite log (gdb.sum and gdb.log) URL(s):
	<http://gdb-build.sergiodj.net/results/RHEL-s390x-m64/f7/f7c6f42310233479ea6339430b7c1ca1f9ec68e1/>