[patch fortran] PR 84924 - Erroneous error in C_F_POINTER

[Dominique d'Humières]

The attached patch allows scalar noninteroperable scalar derived type with 
-std=f2003 and -std=f2008.

Regstrapped on x86_64-apple-darwin17. OK for trunk?

Regards,

Dominique

2018-03-25  Seth Johnson <johnso...@ornl.gov>
        Dominique d'Humieres  <domi...@gcc.gnu.org>

        PR fortran/84924
        * check.c (gfc_check_c_f_pointer): Allow scalar noninteroperable
        scalar derived type with -std=f2003 and -std=f2008.

2018-03-25  Seth Johnson <johnso...@ornl.gov>
        Dominique d'Humieres  <domi...@gcc.gnu.org>

        PR fortran/84924
        * gfortran.dg/scalar_pointer_1.f90: New test.

patch-84924
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