The attach patch enforces F2018:C15100.  Similar constraints are
present in older versions of the standard.  The patch and testcase
are sufficiently explanatory.  Regression tested on x86_64-*-freebsd.
OK to commit?


2018-03-11  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/83939
	* resolve.c (resolve_fl_procedure): Enforce F2018:C15100.
2018-03-11  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/83939
	* gfortran.dg/pr83939.f90
-- 
Steve