lto-streamer.h (enum LTO_tags): Add LTO_integer_cst.

lto-streamer.h (enum LTO_tags): Add LTO_integer_cst.

2012-10-18  Richard Guenther  <rguenther@suse.de>

	* lto-streamer.h (enum LTO_tags): Add LTO_integer_cst.
	* lto-streamer-in.c (lto_input_tree): Use it.
	* lto-streamer-out.c (lto_output_tree): Likewise, for
	!TREE_OVERFLOW integer constants only.
	* tree-streamer-in.c (unpack_ts_int_cst_value_fields): New function.
	(unpack_value_fields): Call it.
	(streamer_read_integer_cst): Simplify.
	* tree-streamer-out.c (pack_ts_int_cst_value_fields): New function.
	(streamer_pack_tree_bitfields): Call it.
	(streamer_write_integer_cst): Adjust.

From-SVN: r192559