#14808: GHC HEAD regression: GADT constructors no longer quantify tyvars in topological order -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: goldfire Type: bug | Status: new Priority: highest | Milestone: 8.6.1 Component: Compiler (Type | Version: 8.5 checker) | Resolution: | Keywords: GADTs Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #14529, #14796 | Differential Rev(s): Phab:D4413 Wiki Page: | -------------------------------------+------------------------------------- Comment (by Simon Peyton Jones <simonpj@…>): In [changeset:"e7653bc3c4f57d2282e982b9eb83bd1fcbae6e30/ghc" e7653bc/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="e7653bc3c4f57d2282e982b9eb83bd1fcbae6e30" Wombling around in Trac #14808 Comment:4 in Trac #14808 explains why I'm unhappy with the current state of affairs -- at least the lack of documentation. This smallpatch does nothing major: * adds comments * uses existing type synonyms more (notably FreeKiTyVarsWithDups) * adds another test case to T14808 }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14808#comment:6> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler