[GHC] #1825: standalone deriving for typeable fails

[GHC]

#1825: standalone deriving for typeable fails
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 Reporter:  jpbernardy  |          Owner:  simonpj
     Type:  bug         |         Status:  new    
 Priority:  normal      |      Milestone:  6.8.2  
Component:  Compiler    |        Version:  6.8.1  
 Severity:  normal      |     Resolution:         
 Keywords:              |     Difficulty:  Unknown
 Testcase:              |   Architecture:  Unknown
       Os:  Unknown     |  
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Comment (by igloo):

 Is it hard to do the same magic for "deriving instance Typeable ..." that
 is done for "data ... deriving Typeable"? It seems a bit unpleasant that
 the same thing doesn't work in both cases.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1825#comment:3>
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