Allow top-level expressions to refer to inits
Better support for class top-level behavior
Fix typo that led to a bad bug
Attempt better error message for bad method type case

TODO: think harder about these error cases
Add support for inherited methods
Make keyword methods type-check

Note: send does not work with keyword methods yet
Fix subtyping for fields
Fix type-checking for fields with `this`
Convert DrRacket tooltip to TR
Don't make mandatory super inits mandatory for super-new
Add super calls

(also removed bogus super-new init test)
Fix broken internal error

Merge this into mainline Racket sometime
Improve typed/racket/draw
Ported tooltip.rkt fully

Keyword send still doesn't work