[GHC] #11732: Deriving Generic1 interacts poorly with TypeInType

[GHC]

#11732: Deriving Generic1 interacts poorly with TypeInType
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        Reporter:  goldfire          |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.1
      Resolution:                    |             Keywords:  TypeInType,
                                     |  Generics
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #5939             |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by simonpj):

 Good points in comment:13, Richard.

 I'm happy with what Ryan suggests in comment:16.  But it would be good to
 have a substantial `Note` to explain the thinking, with a link to this
 ticket.

 Simon

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11732#comment:17>
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