[GHC] #5288: Less noisy version of -fwarn-name-shadowing

[GHC]

#5288: Less noisy version of -fwarn-name-shadowing
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    Reporter:  batterseapower    |        Owner:              
        Type:  feature request   |       Status:  new         
    Priority:  normal            |    Milestone:              
   Component:  Compiler          |      Version:  7.0.3       
    Keywords:                    |     Testcase:              
   Blockedby:                    |   Difficulty:              
          Os:  Unknown/Multiple  |     Blocking:              
Architecture:  Unknown/Multiple  |      Failure:  None/Unknown
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Comment(by simonpj):

 I'm still hoping for a *specification*.  Perhaps you mean "report
 shadowing only for a recursive binding"?

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5288#comment:5>
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