calls.c (mem_overlaps_already_clobbered_arg_p): Use SBITMAP_SIZE instead of looking at sbitmap n_bits member directly.

	* calls.c (mem_overlaps_already_clobbered_arg_p): Use SBITMAP_SIZE
	instead of looking at sbitmap n_bits member directly.
	* gcse.c (hoist_code): Likewise.
	* sched-rgn.c (split_edges): Likewise.
	* tree-into-ssa.c (is_old_name, is_new_name, add_new_name_mapping,
	update_ssa): Likewise.

From-SVN: r190268