backport: re PR fortran/68544 (ICE trying to pass derived type constructor as a function)

backport: re PR fortran/68544 (ICE trying to pass derived type constructor as a function)

2019-06-20  Steven G. Kargl  <kargl@gcc.gnu.org>

	Backport from mainline
	PR fortran/68544
	* resolve.c (is_dt_name): New function to compare symbol name against
	list of derived types.
	(resolve_actual_arglist): Use it to find wrong code.

2019-06-20  Steven G. Kargl  <kargl@gcc.gnu.org>

	Backport from mainline
	PR fortran/68544
	* gfortran.dg/pr68544.f90: New test.
	* gfortran.dg/pr85687.f90: Modify test for new error message.

From-SVN: r272529