* sbitmap.h (sbitmap_ptr, const_sbitmap_ptr): Move from here...
	* sbitmap.c: ...to here to internalize sbitmap element access.
	Do not include tm.h, rtl.h, flags.h, hard-reg-set.h, and obstack.h.
	Explain why basic-block.h is included.
	* function.h: Include tm.h for CUMULATIVE_ARGS.
	* Makefile.in: Update dependencies.

From-SVN: r159749