#12652: Type checker no longer accepting code using function composition and rank-n types -------------------------------------+------------------------------------- Reporter: ezyang | Owner: simonpj Type: bug | Status: new Priority: normal | Milestone: 8.2.1 Component: Compiler (Type | Version: 8.1 checker) | Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by goldfire): I'm all for making `(.)` special in the type-checker, but I don't think it should require `ImpredicativeTypes`. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12652#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler