[GHC] #11837: GHC fails to unify kinds when deriving polykinded typeclass instance for polykinded newtype

[GHC]

#11837: GHC fails to unify kinds when deriving polykinded typeclass instance for
polykinded newtype
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        Reporter:  RyanGlScott       |                Owner:  RyanGlScott
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:  8.0.2
       Component:  Compiler (Type    |              Version:  8.0.1
  checker)                           |
      Resolution:  fixed             |             Keywords:  deriving
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #8865, #11833     |  Differential Rev(s):  Phab:D2117
       Wiki Page:                    |
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Changes (by RyanGlScott):

 * keywords:   => deriving


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11837#comment:5>
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