Failures on Fedora-ppc64le-native-extended-gdbserver-m64, branch master

[sergiodj+buildbot@sergiodj.net]

Buildslave:
	fedora-ppc64le-1

Full Build URL:
	<http://gdb-build.sergiodj.net/builders/Fedora-ppc64le-native-extended-gdbserver-m64/builds/4771>

Commit(s) tested:
	abf5651e47c0396df58a37951bc03a349169c5f2

Author(s) (in the same order as the commits):
	Tom Tromey <tom@tromey.com>

Subject:
	Change event code to use gdbpy_ref

Testsuite log (gdb.sum and gdb.log) URL(s):
	<http://gdb-build.sergiodj.net/results/Fedora-ppc64le-native-extended-gdbserver-m64/ab/abf5651e47c0396df58a37951bc03a349169c5f2/>