[GHC] #2612: deriving Data.Typeable on phantom newtypes does not report that DeriveDataTypeable is needed

[GHC]

#2612: deriving Data.Typeable on phantom newtypes does not report that
DeriveDataTypeable is needed
----------------------+-----------------------------------------------------
 Reporter:  guest     |          Owner:           
     Type:  bug       |         Status:  closed   
 Priority:  normal    |      Milestone:           
Component:  Compiler  |        Version:  6.9      
 Severity:  normal    |     Resolution:  duplicate
 Keywords:            |     Difficulty:  Unknown  
 Testcase:            |   Architecture:  x86      
       Os:  MacOS X   |  
----------------------+-----------------------------------------------------
Changes (by simonpj):

  * status:  new => closed
  * resolution:  => duplicate

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2612#comment:3>
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