[GHC] #7070: DataKinds and package boundaries: "the 'impossible' happened" (was: "the 'impossible' happened")

[GHC]

#7070: DataKinds and package boundaries: "the 'impossible' happened"
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 Reporter:  aristidb            |          Owner:                
     Type:  bug                 |         Status:  new           
 Priority:  normal              |      Component:  Compiler      
  Version:  7.4.2               |       Keywords:                
       Os:  Linux               |   Architecture:  x86_64 (amd64)
  Failure:  Compile-time crash  |       Testcase:                
Blockedby:                      |       Blocking:                
  Related:                      |  
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7070#comment:5>
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