extending it to find places we can use std::unique_ptr on arrays

Change-Id: I9feb1d12d738d6931e752ecb6dd51cbc1540c81b
Reviewed-on: https://gerrit.libreoffice.org/39255Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>