[cc1] Fix commit 60276b9
[cc1] Fix commit 60276b9

The commit 60276b9 was decaying everything when it was
calling postfix(), but this was not the correct behaviour. This
situation happend always that needed to call to primary(),
and there are some cases where we do not want to decay
(for example with the operator &).

k0gaMSX/scc,k0gaMSX/scc,k0gaMSX/scc