[GHC] #5934: ghc: panic! (the 'impossible' happened)

[GHC]

#5934: ghc: panic! (the 'impossible' happened)
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    Reporter:  guest           |       Owner:                                    
        Type:  bug             |      Status:  merge                             
    Priority:  normal          |   Milestone:                                    
   Component:  Compiler        |     Version:  7.4.1                             
    Keywords:                  |          Os:  Linux                             
Architecture:  x86_64 (amd64)  |     Failure:  Compile-time crash                
  Difficulty:  Unknown         |    Testcase:  indexed-types/should_fail/T5934.hs
   Blockedby:                  |    Blocking:                                    
     Related:                  |  
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Comment(by pcapriotti):

 Dimitrios, does this depend on the 'new-flavor' branch? If so, then it
 probably shouldn't be merged in 7.4.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5934#comment:3>
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