...warning about non-overriding virtual dtors in final classes. Every single one of these might or might not be suspicious (e.g., in some cases it might be better to have a virtual dtor in a derived-from class). Also, for some of the virtual dtors, making them non-virtual then caused > error: unnecessary user-declared destructor [loplugin:unnecessaryoverride] so those were removed completely. Change-Id: If0ee71645a347d6096b65988c56f627c42fe54b2 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/185223 Tested-by: Jenkins Reviewed-by: Stephan Bergmann <stephan.bergmann@allotropia.de>