[GHC] #6060: the 'impossible' happened

[GHC]

#6060: the 'impossible' happened
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    Reporter:  lerkok            |       Owner:                    
        Type:  bug               |      Status:  patch             
    Priority:  normal            |   Milestone:  7.6.1             
   Component:  Compiler          |     Version:  7.4.1             
    Keywords:                    |          Os:  Unknown/Multiple  
Architecture:  Unknown/Multiple  |     Failure:  Compile-time crash
  Difficulty:  Unknown           |    Testcase:                    
   Blockedby:                    |    Blocking:                    
     Related:                    |  
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Changes (by pcapriotti):

  * status:  new => patch


Comment:

 The pretty printer for parallel comprehensions is broken. Attached patch
 and testcase.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/6060#comment:2>
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