[GHC] #5678: Unexpected cryptic GADT type error

[GHC]

#5678: Unexpected cryptic GADT type error
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  Reporter:  mikhail.vorozhtsov  |          Owner:                  
      Type:  bug                 |         Status:  closed          
  Priority:  normal              |      Milestone:                  
 Component:  Compiler            |        Version:  7.3             
Resolution:  invalid             |       Keywords:                  
  Testcase:                      |      Blockedby:                  
Difficulty:                      |             Os:  Unknown/Multiple
  Blocking:                      |   Architecture:  Unknown/Multiple
   Failure:  None/Unknown        |  
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Comment(by mikhail.vorozhtsov):

 Ah, now I get it.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5678#comment:3>
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