[patch, libfortran] [patch, fortran] Fix PR 79956, part two, attempt 2

[Thomas Koenig]

Hello world,

Following Richard's suggestion, I have implemented the GFC_ASSERT macro
and used it to (hopefully) silence the ominous warning and allow
further optimization.

OK for trunk?

Regards

	Thomas

2017-03-12  Thomas Koenig  <tkoenig@gcc.gnu.org>

         PR libfortran/79956
         * libgfortran.h (GFC_ASSERT):  New macro.
         * m4/reshape.m4 (reshape_'rtype_ccode`):  Use GFC_ASSERT
         to specify that sdim > 0.
         * intrinsic/reshape_generic.c (reshape_internal):  Likweise.
         * generated/reshape_c10.c: Regenerated.
         * generated/reshape_c16.c: Regenerated.
         * generated/reshape_c4.c: Regenerated.
         * generated/reshape_c8.c: Regenerated.
         * generated/reshape_i16.c: Regenerated.
         * generated/reshape_i4.c: Regenerated.
         * generated/reshape_i8.c: Regenerated.
         * generated/reshape_r10.c: Regenerated.
         * generated/reshape_r16.c: Regenerated.
         * generated/reshape_r4.c: Regenerated.
         * generated/reshape_r8.c: Regenerated.
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