re PR fortran/56284 ([OOP] ICE with alternate return in type-bound procedure)

re PR fortran/56284 ([OOP] ICE with alternate return in type-bound procedure)

2013-04-03  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/56284
	PR fortran/40881
	* decl.c (gfc_match_formal_arglist): Warn about alternate-return
	arguments.
	* interface.c (check_dummy_characteristics): Return if symbols are NULL.

2013-04-03  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/56284
	PR fortran/40881
	* gfortran.dg/altreturn_8.f90: New.
	* gfortran.dg/altreturn_2.f90: Add -std=legacy.
	* gfortran.dg/intrinsic_actual_3.f90: Ditto.
	* gfortran.dg/invalid_interface_assignment.f90: Ditto.

From-SVN: r197389