lto-streamer-out.c (DFS::DFS_write_tree_body): Do not stream DECL_ORIGINAL_TYPE.

lto-streamer-out.c (DFS::DFS_write_tree_body): Do not stream DECL_ORIGINAL_TYPE.

	* lto-streamer-out.c (DFS::DFS_write_tree_body): Do not
	stream DECL_ORIGINAL_TYPE.
	(DFS::DFS_write_tree_body): Drop hack handling local external decls.
	(hash_tree): Do not walk DECL_ORIGINAL_TYPE.
	* tree-streamer-in.c (lto_input_ts_decl_non_common_tree_pointers):
	Do not walk original type.
	* tree-streamer-out.c (streamer_write_chain): Drop hack handling
	external decls.
	(write_ts_decl_non_common_tree_pointers): Do not stream
	DECL_ORIGINAL_TYPE
	* tree.c (free_lang_data_in_decl): Clear DECL_ORIGINAL_TYPE.
	(find_decls_types_r): Do not walk DEC_ORIGINAL_TYPE.

From-SVN: r262560