Failures on Debian-s390x-m64, branch master

[sergiodj+buildbot@sergiodj.net]

Buildslave:
	debian-jessie-s390x-1

Full Build URL:
	<http://gdb-build.sergiodj.net/builders/Debian-s390x-m64/builds/4986>

Commit(s) tested:
	fdc116781b03f5d30e93f5013159f39c4c0f3471

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

Subject:
	Copy string_view tests from libstdc++

Testsuite log (gdb.sum and gdb.log) URL(s):
	<http://gdb-build.sergiodj.net/results/Debian-s390x-m64/fd/fdc116781b03f5d30e93f5013159f39c4c0f3471/>

*** Diff to previous build ***
============================
new FAIL: gdb.threads/interrupt-while-step-over.exp: displaced-stepping=off: iter=7: wait for stops
============================


*** Complete list of XFAILs for this builder ***

To obtain the list of XFAIL tests for this builder, go to:

	<https://git.sergiodj.net/gdb-xfails.git/tree/xfails/Debian-s390x-m64/xfails/master/xfail?id=6fd17b2>

You can also see a pretty-printed version of the list, with more information
about each XFAIL, by going to:

	<https://git.sergiodj.net/gdb-xfails.git/tree/xfails/Debian-s390x-m64/xfails/master/xfail.table?id=6fd17b2>