tree-cfg.c (verify_address): Remove base argument, add flag whether to check TREE_ADDRESSABLE and do that.

2018-04-30  Richard Biener  <rguenther@suse.de>

	* tree-cfg.c (verify_address): Remove base argument, add
	flag whether to check TREE_ADDRESSABLE and do that.
	(verify_expr): Remove.
	(verify_types_in_gimple_reference): Add pieces from verify_expr.
	(verify_gimple_assign_single): Likewise.
	(verify_gimple_switch): Likewise.
	(verify_expr_location_1): Dereference tp once.  Add (disabled)
	piece from verify_expr.
	(verify_gimple_in_cfg): Do not call verify_expr on all ops.

From-SVN: r259765