Failures on RHEL-s390x-m64, branch master

[sergiodj+buildbot@redhat.com]

Buildslave:
	rhel-7.1-s390x-1

Full Build URL:
	<http://gdb-build.sergiodj.net/builders/RHEL-s390x-m64/builds/496>

Commit(s) tested:
	a480de357b17b1b2057b8375284079ccafae39db

Author(s) (in the same order as the commits):
	Simon Marchi <simon.marchi@polymtl.ca>

Subject:
	ada-lang.h: Add cast in GROW_VECT

Testsuite log (gdb.sum and gdb.log) URL(s):
	<http://gdb-build.sergiodj.net/cgit/RHEL-s390x-m64/.git/tree/?h=master&id=ced635c074dbef8a25164f67813b613bd3162d56>

*** Regressions found ***
============================
PASS -> FAIL: gdb.base/siginfo-thread.exp: Extract si_errno
============================


*** Regressions against the baseline ***
============================
PASS -> FAIL: gdb.base/siginfo-thread.exp: Extract si_errno
============================