[GHC] #5768: GHC Panic compiling type family with -XPolyKinds

[GHC]

#5768: GHC Panic compiling type family with -XPolyKinds
---------------------------------+------------------------------------------
    Reporter:  goldfire          |       Owner:  dreixel           
        Type:  bug               |      Status:  new               
    Priority:  high              |   Milestone:  7.4.1             
   Component:  Compiler          |     Version:  7.4.1-rc1         
    Keywords:  PolyKinds         |          Os:  Unknown/Multiple  
Architecture:  Unknown/Multiple  |     Failure:  Compile-time crash
  Difficulty:  Unknown           |    Testcase:                    
   Blockedby:                    |    Blocking:                    
     Related:                    |  
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Changes (by igloo):

  * owner:  => dreixel
  * difficulty:  => Unknown
  * priority:  normal => high
  * milestone:  => 7.4.1


Comment:

 Thanks for the report. dreixel, if this is easy to fix we may as well get
 it into 7.4.1, although it's not actually a regression as PolyKinds is
 new.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5768#comment:1>
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