[testing] Tries to address the problem listed in #1970
[testing] Tries to address the problem listed in #1970

If the test bundle is a fragment then its host is
used for class loading.


Signed-off-by: Peter Kriens <016a769244db65ccbb64c8b271e9b7b28d4a3ce8@aqute.biz>

lostiniceland/bnd,lostiniceland/bnd,psoreide/bnd,psoreide/bnd,mcculls/bnd,mcculls/bnd,magnet/bnd,magnet/bnd,mcculls/bnd,magnet/bnd,lostiniceland/bnd,psoreide/bnd