[GHC] #4180: do not consider associativity for unary minus for fixity resolution

[GHC]

#4180: do not consider associativity for unary minus for fixity resolution
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    Reporter:  maeder            |       Owner:                   
        Type:  proposal          |      Status:  new              
    Priority:  normal            |   Component:  Compiler         
     Version:  6.12.3            |    Keywords:  fixity resolution
          Os:  Unknown/Multiple  |    Testcase:                   
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown     
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Comment(by maeder):

 see http://www.haskell.org/pipermail/haskell-prime/2010-July/003229.html
 for more explanations

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4180#comment:1>
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