[PATCH] PR fortran/86322 -- Enforce F2018:C877

[Steve Kargl]

The attached patche fixes the PR.  gfortran was not enforcing
F2018:C877 and would ICE.  Tested on x86_64-*-freebsd.  Ok to
commit?

2019-01-09  Steven G. Kargl  <kargl@gcc.gnu.org>

 PR fortran/86322
 * decl.c (top_var_list): Set locus of expr.
 (gfc_match_data): Detect pointer on non-rightmost part-refs.

2019-01-09  Steven G. Kargl  <kargl@gcc.gnu.org>

 PR fortran/86322
 * gfortran.dg/pr86322_1.f90: New test.
 * gfortran.dg/pr86322_2.f90: Ditto.
 * gfortran.dg/pr86322_3.f90: Ditto.

-- 
Steve
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