[GHC] #2121: ghc-6.8.2: panic! -- idInfo b{tv a4zK} [tv]

[GHC]

#2121: ghc-6.8.2: panic! -- idInfo b{tv a4zK} [tv]
-------------------------+--------------------------------------------------
    Reporter:  vladimir  |       Owner:          
        Type:  bug       |      Status:  new     
    Priority:  normal    |   Component:  Compiler
     Version:  6.8.2     |    Severity:  normal  
    Keywords:            |    Testcase:          
Architecture:  x86       |          Os:  Linux   
-------------------------+--------------------------------------------------
 ghc-6.8.2: panic! (the 'impossible' happened)
   (GHC version 6.8.2 for i386-unknown-linux):
         idInfo b{tv a4zK} [tv]

 When compiling the attached file from XMonadContrib darcs version.
 (http://xmonad.org)

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2121>
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