2016-08-26  Jonathan Wakely  <jwakely@redhat.com>
	    Pedro Alves  <palves@redhat.com>

	* testsuite/lib/gdb-test.exp (gdb-dg-runtest): Define wrapper to save
	and restore dg-interpreter-batch-mode.
	* testsuite/libstdc++-prettyprinters/prettyprinters.exp: Use
	gdb-dg-runtest instead of dg-runtest.
	* testsuite/libstdc++-xmethods/xmethods.exp: Likewise.

Co-Authored-By: Pedro Alves <palves@redhat.com>

From-SVN: r239776