regs.h: Do not include obstack.h, basic-block.h.

regs.h: Do not include obstack.h, basic-block.h.

	* regs.h: Do not include obstack.h, basic-block.h.
	Include machmode.h.
	* jump.c: Include basic-block.h.
	* profile.c: Likewise.
	* tree-profile.c: Likewise.
	* coverage.c: Likewise.
	* basic-block.h (optimize_function_for_size_p): Move to function.h.
	(optimize_function_for_speed_p): Likewise.
	* function.h (optimize_function_for_size_p,
	optimize_function_for_speed_p): Moved here from basic-block.h.

From-SVN: r159761