Eliminate SET_BASIC_BLOCK macro.

Eliminate SET_BASIC_BLOCK macro.

gcc/
	* basic-block.h (SET_BASIC_BLOCK): Eliminate macro.

	* cfg.c (compact_blocks): Replace uses of SET_BASIC_BLOCK
	with SET_BASIC_BLOCK_FOR_FN, making use of cfun explicit.
	(expunge_block): Likewise.
	* cfgrtl.c (create_basic_block_structure): Likewise.
	* df-core.c (df_compact_blocks, df_bb_replace): Likewise.
	* sel-sched.c (create_block_for_bookkeeping): Likewise.
	* tree-cfg.c (create_bb): Likewise.

From-SVN: r205821