mozilla/rust — pull request #7405 by artagnon (2013-06-26 11:54:30+00:00)
Title: treemap: remove .each in favor of .iter().advance

Both extra::treemap::TreeMap and extra::treemap::TreeSet have
corresponding iterators TreeMapIterator and TreeSetIterator.
Unfortunately, the tests and extra::serialize use the older .each.
Update all the dependent code, and remove .each.

Signed-off-by: Ramkumar Ramachandra