[GHC] #4485: Unexplained change in type-inference + OverlappingInstances in

[GHC]

#4485: Unexplained change in type-inference + OverlappingInstances in
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    Reporter:  JeremyShaw        |       Owner:                           
        Type:  bug               |      Status:  new                      
    Priority:  normal            |   Component:  Compiler                 
     Version:  7.0.1 RC1         |    Keywords:                           
    Testcase:                    |   Blockedby:                           
          Os:  Unknown/Multiple  |    Blocking:                           
Architecture:  Unknown/Multiple  |     Failure:  GHC rejects valid program
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Changes (by dsf):

 * cc: dsf@… (added)


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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4485#comment:1>
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