[GHC] #3102: The impossible happened with implicit parameters

[GHC]

#3102: The impossible happened with implicit parameters
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    Reporter:  Ashley Yakeley           |        Owner:  chak   
        Type:  bug                      |       Status:  new    
    Priority:  normal                   |    Milestone:  6.12.1 
   Component:  Compiler (Type checker)  |      Version:  6.10.1 
    Severity:  normal                   |   Resolution:         
    Keywords:                           |   Difficulty:  Unknown
    Testcase:                           |           Os:  Linux  
Architecture:  Unknown/Multiple         |  
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Changes (by igloo):

  * milestone:  => 6.12.1

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3102#comment:3>
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