and fix a bug where SalObject::Enabled(bool) should be virtual,
introduced by my commit
b44cbb26
"new loplugin: change virtual methods to non-virtual"

Change-Id: I08cdddb36eed887ea7bd01f6260fa5fd89d12429
Reviewed-on: https://gerrit.libreoffice.org/14273Reviewed-by: Noel Grandin <noelgrandin@gmail.com>
Tested-by: Noel Grandin <noelgrandin@gmail.com>