[GHC] #3993: allow implicit parameter bindings in patterns (was: allow implicit parameter bindings in patternseee)

[GHC]

#3993: allow implicit parameter bindings in patterns
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    Reporter:  aavogt            |       Owner:              
        Type:  feature request   |      Status:  new         
    Priority:  normal            |   Component:  Compiler    
     Version:  6.12.1            |    Keywords:              
          Os:  Unknown/Multiple  |    Testcase:              
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3993#comment:1>
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