[GHC] #9858: Typeable instance for datatype and its promoted constructor is the same

[GHC]

#9858: Typeable instance for datatype and its promoted constructor is the same
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        Reporter:  dreixel           |                   Owner:  dreixel
            Type:  bug               |                  Status:  new
        Priority:  high              |               Milestone:  7.10.1
       Component:  Compiler          |                 Version:  7.9
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  None/Unknown      |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:
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Comment (by oerjan):

 Replying to [comment:12 dreixel]:
 > I think this example highlights a different limitation of Typeable,
 along the lines of #7897.

 But #7897 doesn't break Safe Haskell like these examples do. And I think
 there is a common feature of the ones here: Typeable breaks because a
 typerep doesn't include the kind of the type.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9858#comment:13>
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