#15122: GHC HEAD typechecker regression involving overlapping instances -------------------------------------+------------------------------------- Reporter: fmixing | Owner: (none) Type: bug | Status: new Priority: highest | Milestone: 8.6.1 Component: Compiler (Type | Version: 8.5 checker) | Resolution: | Keywords: 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: | -------------------------------------+------------------------------------- Changes (by RyanGlScott): * cc: goldfire (added) Comment: This regression was introduced in commit e3dbb44f53b2f9403d20d84e27f187062755a089 (Fix #12919 by making the flattener homegeneous.). -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15122#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler