[GHC] #5041: Incorrect Read deriving for MagicHash constructors

[GHC]

#5041: Incorrect Read deriving for MagicHash constructors
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    Reporter:  dolio             |        Owner:              
        Type:  bug               |       Status:  new         
    Priority:  normal            |    Milestone:  7.2.1       
   Component:  Compiler          |      Version:  7.0.2       
    Keywords:                    |     Testcase:              
   Blockedby:                    |   Difficulty:              
          Os:  Unknown/Multiple  |     Blocking:              
Architecture:  Unknown/Multiple  |      Failure:  None/Unknown
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Comment(by simonpj):

 Options 2 and 3 above are precisely that.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5041#comment:4>
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