[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:  new    
 Priority:  normal    |      Milestone:         
Component:  Compiler  |        Version:  6.9    
 Severity:  normal    |     Resolution:         
 Keywords:            |     Difficulty:  Unknown
 Testcase:            |   Architecture:  x86    
       Os:  MacOS X   |  
----------------------+-----------------------------------------------------
Changes (by simonpj):

  * difficulty:  => Unknown

Comment:

 Thanks for the suggestion.  Happily this is already done: see #2604.

 Simon

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2612#comment:2>
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