[GHC] #7148: generalized newtype and type families is unsound

[GHC]

#7148: generalized newtype and  type families is unsound
------------------------------+---------------------------------------------
 Reporter:  carter            |          Owner:                  
     Type:  bug               |         Status:  new             
 Priority:  normal            |      Component:  Compiler        
  Version:  7.6.1-rc1         |       Keywords:                  
       Os:  Unknown/Multiple  |   Architecture:  Unknown/Multiple
  Failure:  None/Unknown      |       Testcase:                  
Blockedby:                    |       Blocking:                  
  Related:                    |  
------------------------------+---------------------------------------------

Comment(by carter):

 to clarify: tested code in ghci

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7148#comment:1>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler