Normalize SIGNAL syntax

makes Krazy happy.

src/wayland/autotests/client/test_datasource.cpp

@@ -145,7 +145,7 @@ void TestDataSource::testOffer()
     QCOMPARE(serverDataSource->mimeTypes().count(), 0);
     QVERIFY(serverDataSource->parentResource());
 
-    QSignalSpy offeredSpy(serverDataSource.data(), SIGNAL(mimeTypeOffered(const QString&)));
+    QSignalSpy offeredSpy(serverDataSource.data(), SIGNAL(mimeTypeOffered(QString)));
     QVERIFY(offeredSpy.isValid());
 
     const QString plain = QStringLiteral("text/plain");

src/wayland/autotests/client/test_wayland_seat.cpp

@@ -469,7 +469,7 @@ void TestWaylandSeat::testPointerButton()
 
     QScopedPointer<Pointer> p(m_seat->createPointer());
     QVERIFY(p->isValid());
-    QSignalSpy buttonChangedSpy(p.data(), SIGNAL(buttonStateChanged(quint32, quint32, quint32, KWayland::Client::Pointer::ButtonState)));
+    QSignalSpy buttonChangedSpy(p.data(), SIGNAL(buttonStateChanged(quint32,quint32,quint32,KWayland::Client::Pointer::ButtonState)));
     QVERIFY(buttonChangedSpy.isValid());
     wl_display_flush(m_connection->display());
     QCoreApplication::processEvents();