[GHC] #9821: DeriveAnyClass support for higher-kinded classes + some more comments

[GHC]

#9821: DeriveAnyClass support for higher-kinded classes + some more comments
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        Reporter:  dreixel           |                Owner:  dreixel
            Type:  bug               |               Status:  infoneeded
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.9
      Resolution:                    |             Keywords:  Generics
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #5462, #9968,     |  Differential Rev(s):
  #12144                             |
       Wiki Page:                    |
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Comment (by simonpj):

 Sounds good to me.  Let's go with the [https://mail.haskell.org/pipermail
 /ghc-devs/2016-June/012252.html email thread]

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9821#comment:9>
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