Typed Racket

Sam Tobin-Hochstadt d7d9932f89 Allow objects to be specified in -> ... Fix overlap to handle overlapping base types (numbers) svn: r14781 original commit: 7b4081eef114343991472b0839e336d35301802a		2009-05-12 15:13:17 +00:00
collects	Allow objects to be specified in ->	2009-05-12 15:13:17 +00:00