re PR fortran/82586 ([PDT] ICE: write_symbol(): bad module symbol)

re PR fortran/82586 ([PDT] ICE: write_symbol(): bad module symbol)

2017-10-21  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/82586
	* decl.c (gfc_get_pdt_instance): Remove the error message that
	the parameter does not have a corresponding component since
	this is now taken care of when the derived type is resolved. Go
	straight to error return instead.
	(gfc_match_formal_arglist): Make the PDT relevant errors
	immediate so that parsing of the derived type can continue.
	(gfc_match_derived_decl): Do not check the match status on
	return from gfc_match_formal_arglist for the same reason.
	* resolve.c (resolve_fl_derived0): Check that each type
	parameter has a corresponding component.

	PR fortran/82587
	* resolve.c (resolve_generic_f): Check that the derived type
	can be used before resolving the struture constructor.

	PR fortran/82589
	* symbol.c (check_conflict): Add the conflicts involving PDT
	KIND and LEN attributes.

2017-10-21  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/82586
	* gfortran.dg/pdt_16.f03 : New test.
	* gfortran.dg/pdt_4.f03 : Catch the changed messages.
	* gfortran.dg/pdt_8.f03 : Ditto.

	PR fortran/82587
	* gfortran.dg/pdt_17.f03 : New test.

	PR fortran/82589
	* gfortran.dg/pdt_18.f03 : New test.

From-SVN: r253970