tests: change testqml to allow direct register of C++ objects

Signed-off-by: Jan Iversen <jani@apache.org>

tests/testqml.h

@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0
+#ifndef TESTQML_H
+#define TESTQML_H
+#include <QtQuickTest>
+#include <QQmlEngine>
+#include <QQmlContext>
+#include <QObject>
+
+class QMLTestSetup : public QObject {
+	Q_OBJECT
+
+public:
+	QMLTestSetup() {}
+
+public slots:
+	void qmlEngineAvailable(QQmlEngine *engine);
+};
+
+#endif // TESTQML_H