* sbitmap.h (sbitmap_iterator, sbitmap_iter_init,
	sbitmap_iter_cond, sbitmap_iter_next): New.
	* bt-load.c, cfganal.c, combine.c, ddg.c, flow.c,
	modulo-sched.c, sbitmap.c, sched-rgn.c, tree-into-ssa.c,
	tree-outof-ssa.c, tree-ssa-alias.c, tree-ssa-live.c: Update
	uses of EXECUTE_IF_SET_IN_SBITMAP to the new style.

From-SVN: r100709