[GHC] #1031: ghc 6.6 impossible happened

[GHC]

#1031: ghc 6.6 impossible happened
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 Reporter:  guest     |          Owner:         
     Type:  bug       |         Status:  new    
 Priority:  normal    |      Milestone:         
Component:  Compiler  |        Version:  6.6    
 Severity:  normal    |     Resolution:         
 Keywords:            |     Difficulty:  Unknown
 Testcase:            |   Architecture:  Unknown
       Os:  Unknown   |  
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Comment (by guest):

 this bug is from John Meacham <john at repetae.net>

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1031>
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