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 1adb1a32.

Change-Id: I52924b35008c8e4b44c8a6b6657cc3a1ac513886
Reviewed-on: https://gerrit.libreoffice.org/49848Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>