to_parity: Use merge_states
* spot/twaalgos/toparity.cc: Use merge_states at the end of to_parity. * tests/python/toparity.py: Update tests.
Please drop this patch from your branch.
We will run merge_states() in postproc and in ltlsynt after running to_parity(). I'm currently writing a patch to move reduce_parity() out of to_parity() as well: when it's included, to_parity() does not return compatible result when run on an entire automaton or a on a single SCC. Keeping it outside makes it easier to follow what's going on.