new plugin to look for class fields that are always cast to some subtype, which indicates that they should probably just be declared to be that subtype. Perform one of the suggested improvements in xmlsecurity/ Change-Id: Ia68df422c37f05cbcf9c02ba5d0853f8eca4f120 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/159063 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>