#12176: Failure of bidirectional type inference at the kind level -------------------------------------+------------------------------------- Reporter: goldfire | Owner: goldfire Type: bug | Status: closed Priority: normal | Milestone: 8.4.1 Component: Compiler | Version: 8.0.1 Resolution: fixed | Keywords: TypeInType Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: | dependent/should_compile/T12176 Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by alpmestan): * cc: alpmestan (added) Comment: I recently ran `./validate --slow` and saw the test for this ticket (`T12176`) fail in all 5 ways that it supports. Just like with the test for #12442, it fails with: {{{ ghc: panic! (the 'impossible' happened) (GHC version 8.5.20180329 for x86_64-unknown-linux): ASSERT failed! file compiler/typecheck/TcTyClsDecls.hs, line 1531 }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12176#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler