after I missed a bunch of stuff when testing UBSan with
commit 3ba92b5f1e
hide more symbols
Change-Id: Id3cb0b70b9fa24c7e3fba7fd565eb658dafa00f8
Change-Id: I369587ed3e14e50ca272037b9d950b62841695d5
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/163703
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>