[GHC] #2733: Newtype deriving over phantom types broke between GHC 6.6.1 and GHC 6.8.1

[GHC]

#2733: Newtype deriving over phantom types broke between GHC 6.6.1 and GHC 6.8.1
--------------------------------------------+-------------------------------
 Reporter:  DavidA                          |          Owner:           
     Type:  bug                             |         Status:  closed   
 Priority:  normal                          |      Milestone:           
Component:  Compiler                        |        Version:  6.8.3    
 Severity:  normal                          |     Resolution:  duplicate
 Keywords:  newtype deriving, phantom type  |     Difficulty:  Unknown  
 Testcase:                                  |   Architecture:  x86      
       Os:  Windows                         |  
--------------------------------------------+-------------------------------
Changes (by simonpj):

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

Comment:

 Dup #2734.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2733#comment:1>
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