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 0d9f3f76.

Change-Id: I33f79bf755aedc1ed48d95f7b82f3fabed1347fb
Reviewed-on: https://gerrit.libreoffice.org/49834Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>