2011-12-13  Richard Guenther  <rguenther@suse.de>

	PR lto/48354
	* tree.c (find_decls_types_r): Also walk DECL_ORIGINAL_TYPE.
	* tree-streamer-in.c (lto_input_ts_decl_non_common_tree_pointers):
	Stream DECL_ORIGINAL_TYPE.
	* tree-streamer-out.c (write_ts_decl_non_common_tree_pointers):
	Likewise.

	lto/
	* lto.c (lto_ft_decl_non_common): When we merged DECL_ORIGINAL_TYPE
	with the type of the TYPE_DECL clear DECL_ORIGINAL_TYPE.

	* g++.dg/lto/pr48354-1_0.C: New testcase.

From-SVN: r182286