[Libreoffice] final and override

[Noel Grandin]

Hi

I see the Mozilla project is adding MOZ_FINAL and MOZ_OVERRIDE macros
to help control method overriding in their codebase

http://whereswalden.com/2011/11/16/introducing-moz_override-to-annotate-virtual-functions-which-override-base-class-virtual-functions/
http://whereswalden.com/2011/11/26/introducing-moz_final-prevent-inheriting-from-a-class-or-prevent-overriding-a-virtual-function/

Would such things be useful additions to the LibreOffice codebase?

-- Noel Grandin