fix PR 86888

2018-08-22  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/86888
	* decl.c (gfc_match_data_decl): Allow allocatable components of
	indirectly recursive type.
	* resolve.c (resolve_component): Remove two errors messages ...
	(resolve_fl_derived): ... and replace them by a new one.

2018-08-22  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/86888
	* gfortran.dg/alloc_comp_basics_6.f90: Update an error message and add
	an additional case.
	* gfortran.dg/alloc_comp_basics_7.f90: New test case.
	* gfortran.dg/class_17.f03: Update error message.
	* gfortran.dg/class_55.f90: Ditto.
	* gfortran.dg/dtio_11.f90: Update error messages.
	* gfortran.dg/implicit_actual.f90: Add an error message.
	* gfortran.dg/typebound_proc_12.f90: Update error message.

From-SVN: r263782