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 c82802a9.

Change-Id: I44a5316ebd3d0bde6bd75ad24e9a4406cd8e8db0
Reviewed-on: https://gerrit.libreoffice.org/49836Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>