Dear all,

the attached simple patch fixes a memleak in the frontend when a
character literal is passed to a character,value dummy of a bind(c)
procedure, by relying on gfc_replace_expr to do the cleanup.
(This can be tested e.g. with gfortran.dg/bind_c_usage_13.f03
and running f951 under valgrind).

The patch was OK'ed in the PR by Mikael.

Pushed as r14-3254-g9ade70bb86c874 after partial regtesting on
x86_64-pc-linux-gnu.

Thanks,
Harald