re PR fortran/17144 (Not Implemented: Character string array constructors / Assignment to char array)

	PR fortran/17144
	* trans-array.c (gfc_trans_allocate_temp_array): Remove
	string_length argument.
	(gfc_trans_array_ctor_element): New function.
	(gfc_trans_array_constructor_subarray): Use it.
	(gfc_trans_array_constructor_value): Ditto.  Handle constant
	character arrays.
	(get_array_ctor_var_strlen, get_array_ctor_strlen): New functions.
	(gfc_trans_array_constructor): Use them.
	(gfc_add_loop_ss_code): Update to new gfc_ss layout.
	(gfc_conv_ss_descriptor): Remember section string length.
	(gfc_conv_scalarized_array_ref): Ditto.  Remove dead code.
	(gfc_conv_resolve_dependencies): Update to new gfc_ss layout.
	(gfc_conv_expr_descriptor): Ditto.
	(gfc_conv_loop_setup): Ditto.  Spelling fixes.
	* trans-array.h (gfc_trans_allocate_temp_array): Update prototype.
	* trans-const.c (gfc_conv_constant):  Update to new gfc_ss layout.
	* trans-expr.c (gfc_conv_component_ref): Turn error into ICE.
	(gfc_conv_variable): Set string_length from section.
	(gfc_conv_function_call): Remove extra argument.
	(gfc_conv_expr, gfc_conv_expr_reference): Update to new gfc_ss layout.
	* trans-types.c (gfc_get_character_type_len): New function.
	(gfc_get_character_type): Use it.
	(gfc_get_dtype): Return zero for internal types.
	* trans-types.h (gfc_get_character_type_len): Add prototype.
	* trans.h (struct gfc_ss): Move string_length out of union.
testsuite/
	* gfortran.dg/string_ctor_1.f90: New test.

From-SVN: r86558