[PATCH, Fortran, v1] Clarify error message of co_reduce

[Andre Vehreschild]

Hi all,

as noted on IRC is one of the error message in check.c co_reduce misleading.
The attached patch fixes this. The intention of the error message is to tell
that the type of the argument bound to parameter A is of wrong type and not
that an unspecific argument has a wrong type.

If no one objects within 24 h I am planning to commit this patch as obvious to
trunk gcc-7. Bootstrapped and regtested on x86_64-linux-gnu/f25.

Regards,
        Andre
-- 
Andre Vehreschild * Email: vehre ad gmx dot de 

gcc/fortran/ChangeLog:

2017-10-27  Andre Vehreschild  <ve...@gcc.gnu.org>

        * check.c (gfc_check_co_reduce): Clarify error message.


diff --git a/gcc/fortran/check.c b/gcc/fortran/check.c
index 681950e..759c15a 100644
--- a/gcc/fortran/check.c
+++ b/gcc/fortran/check.c
@@ -1731,7 +1731,7 @@ gfc_check_co_reduce (gfc_expr *a, gfc_expr *op, gfc_expr *result_image,
 
   if (!gfc_compare_types (&a->ts, &sym->result->ts))
     {
-      gfc_error ("A argument at %L has type %s but the function passed as "
+      gfc_error ("The A argument at %L has type %s but the function passed as "
 		 "OPERATOR at %L returns %s",
 		 &a->where, gfc_typename (&a->ts), &op->where,
 		 gfc_typename (&sym->result->ts));