[GHC] #1897: Type families: type signature rejected

[GHC]

#1897: Type families: type signature rejected
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    Reporter:  guest                    |        Owner:  chak       
        Type:  bug                      |       Status:  reopened   
    Priority:  normal                   |    Milestone:  6.10 branch
   Component:  Compiler (Type checker)  |      Version:  6.9        
    Severity:  normal                   |   Resolution:             
    Keywords:                           |   Difficulty:  Unknown    
    Testcase:                           |           Os:  Linux      
Architecture:  x86                      |  
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Comment (by simonpj):

 See also #2855 (another instance of the same problem).

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1897#comment:7>
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