[GHC] #5588: panic after pressing Ctrl+C in ghci

[GHC]

#5588: panic after pressing Ctrl+C in ghci
------------------------+---------------------------------------------------
    Reporter:  MBoehm   |        Owner:            
        Type:  bug      |       Status:  new       
    Priority:  normal   |    Milestone:            
   Component:  GHCi     |      Version:  7.0.3     
    Keywords:           |     Testcase:            
   Blockedby:           |   Difficulty:            
          Os:  Windows  |     Blocking:            
Architecture:  x86      |      Failure:  GHCi crash
------------------------+---------------------------------------------------

Comment(by simonmar):

 No wait!  I did manage to reproduce it, but I had to ^C a couple more
 times.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5588#comment:3>
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