Failures on Debian-s390x-native-gdbserver-m64, branch master

[sergiodj+buildbot@sergiodj.net]

Buildslave:
	debian-jessie-s390x-1

Full Build URL:
	<http://gdb-build.sergiodj.net/builders/Debian-s390x-native-gdbserver-m64/builds/4100>

Commit(s) tested:
	c0f55cc689a57deb342b988b8f0ecb908f0a76e1

Author(s) (in the same order as the commits):
	Artemiy Volkov <artemiyv@acm.org>

Subject:
	Add rvalue reference tests and docs

Testsuite log (gdb.sum and gdb.log) URL(s):
	<http://gdb-build.sergiodj.net/results/Debian-s390x-native-gdbserver-m64/c0/c0f55cc689a57deb342b988b8f0ecb908f0a76e1/>