[Patch] [Jython] fix topological sort

[Former user]

Jython's goofy object ids exposes some goofyness in topological._sort. r3720 changed it to avoid hashing things:

http://www.sqlalchemy.org/trac/changeset/3720#file9

r3887 reverted some of that change (but not all)

http://www.sqlalchemy.org/trac/changeset/3887#file14

Currently it's initially assuming id(item) is the item. Attached patch has it use id(item) everywhere like r3720 does. Against 0.6 branch

-pjenvey

[Mike Bayer]

surprising, in that our non-hashable tests don't uncover this. sure this can be committed.

[Philip Jenvey]

fixed in 29640f52d14eb8ca932c628eda5f9dde9ba48d92

[Mike Bayer]

Removing milestone: 0.6.0 (automated comment)