tree-ssa-propagate.c (cfg_blocks): Change the type to VEC(basic_block,heap) *.

	* tree-ssa-propagate.c (cfg_blocks): Change the type to
	VEC(basic_block,heap) *.
	(cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
	ssa_prop_fini): Adjust the uses of cfg_blocks.

From-SVN: r109266