#15231: UndecidableInstances validity checking is wrong in the presence of QuantifiedConstraints -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.6.1 Component: Compiler (Type | Version: 8.5 checker) | Keywords: Resolution: | QuantifiedConstraints Operating System: Unknown/Multiple | Architecture: Type of failure: GHC rejects | Unknown/Multiple valid program | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by RyanGlScott): Ah, gotcha! That error message does sound like an improvement, yes. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15231#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler