because I
(a) forgot to insert parentheses which changes the meaning of some expressions and
(b) I now use the AdjustFoo calls when changing unary operations, which reads much better

This reverts commit bf8a6cac.

Change-Id: I4b5a9bf0c38ee1b57af91e6b7f184f1e8807f6f7
Reviewed-on: https://gerrit.libreoffice.org/49843Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>