If the local type is a namespace, the resulting type can only be a
namespace, too, no matter what kind of tag the foreign one has.
Furthermore, we can re-use types with other QML_* tags this way.
Task-number: QTBUG-108883
Change-Id: Ib2ae08d5b081b8faa35124314f97d406d7b4f76f
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Ulf Hermann