[GHC] #3947: ghc: panic! (the 'impossible' happened)

[GHC]

#3947: ghc: panic! (the 'impossible' happened)
---------------------------+------------------------------------------------
  Reporter:  steenreem     |          Owner:                  
      Type:  bug           |         Status:  closed          
  Priority:  normal        |      Milestone:                  
 Component:  Compiler      |        Version:  6.10.4          
Resolution:  duplicate     |       Keywords:                  
Difficulty:                |             Os:  Unknown/Multiple
  Testcase:                |   Architecture:  Unknown/Multiple
   Failure:  None/Unknown  |  
---------------------------+------------------------------------------------
Changes (by simonmar):

  * status:  infoneeded => closed
  * version:  6.12.1 => 6.10.4
  * resolution:  => duplicate
  * milestone:  6.12.3 =>


Comment:

 Dup of #3435.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3947#comment:3>
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