[patch, fortran] PR31129 - warning on unused parameters

[Daniel Franke]

Thanks Thomas, I try again ...

On -Wunused/-Wall , emit a warning if an unused parameters is found.

2007-07-09  Daniel Franke  <franke.daniel@gmail.com>

         PR fortran/31129
         * trans-decl.c (generate_local_decl) Emit a warning if an unused
         parameter is found.

2007-07-09  Daniel Franke  <franke.daniel@gmail.com>

         PR fortran/31129
         * gfortran.dg/parameter_unused.f90: New test.

Regtested on i686-pc-linux-gnu. Ok for trunk?

Regards
    Daniel
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