cgraph.h (struct varpool_node_set_def, [...]): Remove unused AUX pointer.

cgraph.h (struct varpool_node_set_def, [...]): Remove unused AUX pointer.

	* cgraph.h (struct varpool_node_set_def,
	struct cgraph_node_set_def): Remove unused AUX pointer.
	(cgraph_node_set_nonempty_p, varpool_node_set_nonempty_p): Use
	VEC_empty macro.

	* lto.c (bitmap vector): Remove.
	(lto_cgraph_node_sets,  lto_varpool_node_sets): Remove.
	(ltrans_partition_def): New structure.
	(ltrans_partition): New type and VECtor.
	(new_partition): New function.
	(add_cgraph_node_to_partition): New function.
	(lto_1_to_1_map): Reorganize for partitions.
	(lto_add_inline_clones): Remove.
	(lto_add_all_inlinees): Remove.
	(lto_promote_cross_file_statics): Use partitions.
	(cmp_partitions): New function.
	(lto_wpa_write_files): Do not call lto_add_all_inlinees;
	use partitions; output files sorted by size.

From-SVN: r160034