constrained-type.rs fails to parse again

[jruderman]

Comment in the test indicates that it's supposed to parse but not run. It doesn't parse. (Again. It was fixed once in #141.)

/Users/jruderman/code/rust/src/test/run-pass/constrained-type.rs:18:57:18:58: error: expecting ,, found .

[catamorphism]

Ah... that's to be expected. Constrained types aren't working yet (as in, not even parsing).

[catamorphism]

Fixed in bd4aeef -- typestate isn't working correctly for these, but it does parse now.