[GHC] #1274: Add a MonadState instance for the Parsec monad

[GHC]

#1274: Add a MonadState instance for the Parsec monad
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    Reporter:  mux                |       Owner:         
        Type:  bug                |      Status:  new    
    Priority:  normal             |   Milestone:  Not GHC
   Component:  libraries (other)  |     Version:  6.6    
    Severity:  minor              |    Keywords:         
  Difficulty:  Easy (1 hr)        |    Testcase:         
Architecture:  Unknown            |          Os:  Unknown
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This patch adds a MonadState instance for the GenParser monad of Parsec,
 allowing the use of the usual state handling primitives instead of the
 custom ones provided by Parsec.

 The drawback of this is that it adds a dependency on mtl; I don't think
 that's much of a problem though, and we'll need it for ParsecT anyways.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1274>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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