[GHC] #3569: ghci can't handle utf-8 chinese char correctly when modify.

[GHC]

#3569: ghci can't handle utf-8 chinese char correctly when modify.
---------------------------------+------------------------------------------
    Reporter:  guest             |        Owner:  judah       
        Type:  bug               |       Status:  new         
    Priority:  normal            |    Milestone:  _|_         
   Component:  GHCi              |      Version:  6.10.4      
    Keywords:                    |     Testcase:              
   Blockedby:                    |   Difficulty:  Unknown     
          Os:  Unknown/Multiple  |     Blocking:              
Architecture:  x86_64 (amd64)    |      Failure:  None/Unknown
---------------------------------+------------------------------------------
Changes (by igloo):

  * failure:  => None/Unknown
  * milestone:  Not GHC => _|_


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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3569#comment:3>
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