trans.h (struct gfc_ss, [...]): Move field gfc_ss::useflags into gfc_ss_info.

trans.h (struct gfc_ss, [...]): Move field gfc_ss::useflags into gfc_ss_info.

	* trans.h (struct gfc_ss, struct gfc_ss_info): Move field
	gfc_ss::useflags into gfc_ss_info.
	* trans-array.c (gfc_mark_ss_chain_used, gfc_trans_preloop_setup,
	gfc_trans_scalarizing_loops, gfc_trans_scalarized_boundary):
	Update reference chains.
	* trans-expr.c (gfc_conv_procedure_call): Ditto.
	* trans-intrinsic.c (gfc_conv_intrinsic_function): Ditto.

From-SVN: r180875