[GHC] #5401: LANGUAGE pragma parser nit

[GHC]

#5401: LANGUAGE pragma parser nit
-------------------------------+--------------------------------------------
    Reporter:  nwf             |       Owner:                           
        Type:  bug             |      Status:  new                      
    Priority:  normal          |   Component:  Compiler (Parser)        
     Version:  7.0.3           |    Keywords:                           
    Testcase:                  |   Blockedby:                           
          Os:  Linux           |    Blocking:                           
Architecture:  x86_64 (amd64)  |     Failure:  GHC rejects valid program
-------------------------------+--------------------------------------------

Comment(by daniel.is.fischer):

 The user's guide says
 {{{
 The layout rule applies in pragmas, so the closing #-} should start in a
 column to the right of the opening {-#.
 }}}
 The language report doesn't mention any such restrictions though, so
 perhaps it should be listed in Bugs and infelicities (supposing the parse
 can't easily be changed to accept the `#-}` anywhere).

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5401#comment:1>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler