* graphite-sese-to-poly.c (write_alias_graph_to_ascii_dimacs): Fix Comment.
(write_alias_graph_to_ascii_dot): New.
(write_alias_graph_to_ascii_ecc): Ditto.
(partition_drs_to_sets): Add testing of optimality of current method which
assigns alias numbers according to DFS Comopnent number.
used as heuristic for the upcoming ECC algorithm.
(build_scop_drs): Write to file also with the ecc and dot format.