re PR fortran/87151 (allocating array of character)

re PR fortran/87151 (allocating array of character)

2018-10-09  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/87151
	* trans-array.c (gfc_get_array_span): Deal with deferred char
	array components having a TYPE_MAX_VALUE of zero.
	(gfc_array_init_size): Use the hidden string length component
	to build the descriptor dtype.
	(gfc_array_allocate): Remove the erroneous replacement of the
	charlen backend decl with a temporary.
	(gfc_conv_expr_descriptor): Use the ss_info string length in
	the case of deferred character components.
	(gfc_alloc_allocatable_for_assignment): Actually compare the
	string lengths for deferred characters. Make sure that kind > 1
	is handled correctly. Set the span field of the descriptor.
	* trans-intrinsic.c (gfc_conv_intrinsic_len): Remove the stupid
	comment.

	PR fortran/80931
	* trans-array.c (gfc_array_allocate): Set the span field for
	variable length character arrays.

2018-10-09  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/87151
	* gfortran.dg/deferred_type_component_3.f90: New test.

	PR fortran/80931
	* gfortran.dg/deferred_character_28.f90: New test.
	* gfortran.dg/deferred_character_29.f90: New test (note that
	this test appears in PR83196 comment #4 by mistake).

From-SVN: r264949