[GHC] #1643: Unnecessary dictionaries

[GHC]

#1643: Unnecessary dictionaries
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    Reporter:  guest     |        Owner:         
        Type:  bug       |       Status:  new    
    Priority:  normal    |    Milestone:         
   Component:  Compiler  |      Version:  6.7    
    Severity:  normal    |   Resolution:         
    Keywords:            |   Difficulty:  Unknown
          Os:  MacOS X   |     Testcase:         
Architecture:  x86       |  
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Comment (by duncan):

 The ghc flag -fdicts-cheap (and possibly -fno-method-sharing) may also be
 relevant here.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1643>
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