[GHC] #2766: Infix type operators are presented with incorrect syntax in ghci

[GHC]

#2766: Infix type operators are presented with incorrect syntax in ghci
---------------------------------+------------------------------------------
    Reporter:  EyalLotem         |       Owner:                  
        Type:  bug               |      Status:  new             
    Priority:  normal            |   Component:  Compiler        
     Version:  6.8.3             |    Severity:  normal          
    Keywords:                    |    Testcase:                  
Architecture:  Unknown/Multiple  |          Os:  Unknown/Multiple
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 Prelude Control.Arrow> :t first :: Arrow (~>) => b~>c -> (b, d)~>(c, d)
 first :: Arrow (~>) => b~>c -> (b, d)~>(c, d) :: (Arrow ~>) => ~> b c ->
 ~> (b, d) (c, d)

 This is incorrect syntax, and causes other bugs too e.g:
 http://trac.haskell.org/haddock/ticket/64

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2766>
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