* tree.h (struct typed_tree): New.
	(struct tree_common): Include it instead of tree_base.
	(TREE_TYPE): Update for new location of type field.
	(TYPE_USER_ALIGN, TYPE_PACKED): Refer to base field directly.
	(DECL_USER_ALIGN, DECL_PACKED): Likewise.
	(union tree_node): Add typed field.
	* treestruct.def (TS_TYPED): New.
	* lto-streamer.c (check_handled_ts_structures): Handle it.
	* tree.c (MARK_TS_TYPED): New macro.
	(MARK_TS_COMMON): Call it instead of MARK_TS_BASE.

From-SVN: r172295