Patch for PR fortran/30432, Argument list issue

[François-Xavier Coudert]

> 2007-01-25  Steve Ellcey  <sje@cup.hp.com>
>
>         PR fortran/30432
>         * trans-types.c (gfc_get_function_type):  Do not add void_type_node
>         to empty arg list.
>         * trans-decl.c (create_function_arglist): Change assert.

OK for mainline.

I think it would be really good to have this patch into 4.2 also, and
I don't think it's too risky. What's your opinion on that?

FX