[autotests/client] Set event queue on registry

Summary: Otherwise events are dispatched from the wrong thread.

Test Plan: Let's see if Jenkins to see if it hits that race condition again

Reviewers: #kwin

Subscribers: kde-frameworks-devel

Tags: #frameworks

Differential Revision: https://phabricator.kde.org/D28263

src/wayland/autotests/client/test_wayland_surface.cpp

@@ -510,6 +510,7 @@ void TestWaylandSurface::testMultipleSurfaces()
     using namespace KWayland::Client;
     using namespace KWayland::Server;
     Registry registry;
+    registry.setEventQueue(m_queue);
     QSignalSpy shmSpy(&registry, SIGNAL(shmAnnounced(quint32,quint32)));
     registry.create(m_connection->display());
     QVERIFY(registry.isValid());