[GHC] #12933: Wrong class instance selection with Data.Kind.Type

[GHC]

#12933: Wrong class instance selection with Data.Kind.Type
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        Reporter:  julm              |                Owner:
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:  TypeInType
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  GHC accepts       |  Unknown/Multiple
  invalid program                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by mpickering):

 Related to #11715 perhaps?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12933#comment:1>
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