[GHC] #2530: deriving Show adds extra parens for constructor with record syntax

[GHC]

#2530: deriving Show adds extra parens for constructor with record syntax
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 Reporter:  spl       |          Owner:             
     Type:  bug       |         Status:  new        
 Priority:  normal    |      Milestone:  6.10 branch
Component:  Compiler  |        Version:  6.8.3      
 Severity:  normal    |     Resolution:             
 Keywords:            |     Difficulty:  Unknown    
 Testcase:            |   Architecture:  x86        
       Os:  MacOS X   |  
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Changes (by igloo):

  * milestone:  => 6.10 branch

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2530#comment:5>
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