[GHC] #10775: Enable PolyKinds in GHC.Generics

[GHC]

#10775: Enable PolyKinds in GHC.Generics
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        Reporter:  RyanGlScott       |                   Owner:
            Type:  feature request   |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  libraries/base    |                 Version:  7.10.2
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
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Comment (by dreixel):

 I think what you're after is a very small subset of the changes to
 GHC.Generics.hs here:
 https://phabricator.haskell.org/D493?vs=on&id=1690&whitespace=ignore-
 most#15796e19

 Probably just adding the `:: *` kind signatures in the definitions of the
 representation types, I think.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10775#comment:4>
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