Re: [GHC] #15142: GHC HEAD regression: tcTyVarDetails

#15142: GHC HEAD regression: tcTyVarDetails -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: goldfire Type: bug | Status: new Priority: highest | Milestone: 8.6.1 Component: Compiler (Type | Version: 8.5 checker) | Keywords: TypeInType, Resolution: | TypeFamilies, CUSKs Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple crash or panic | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by Richard Eisenberg ): In [changeset:"030211d21207dabb7a4bf21cc9af6fa5eb066db1/ghc" 030211d2/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="030211d21207dabb7a4bf21cc9af6fa5eb066db1" Kind-check CUSK associated types separately Previously, we kind-checked associated types while while still figuring out the kind of a CUSK class. This caused trouble, as documented in Note [Don't process associated types in kcLHsQTyVars] in TcTyClsDecls. This commit moves this process after the initial kind of the class is determined. Fixes #15142. Test case: indexed-types/should_compile/T15142.hs }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15142#comment:15 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler