[GHC] #4316: Interactive "do" notation in GHCi

[GHC]

#4316: Interactive "do" notation in GHCi
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    Reporter:  mitar             |        Owner:  vivian      
        Type:  feature request   |       Status:  patch       
    Priority:  normal            |    Milestone:  7.2.1       
   Component:  GHCi              |      Version:  6.12.3      
    Keywords:                    |     Testcase:              
   Blockedby:                    |   Difficulty:              
          Os:  Unknown/Multiple  |     Blocking:              
Architecture:  Unknown/Multiple  |      Failure:  None/Unknown
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Comment(by vivian):

 How does implementing simonmar's suggestion impact upon #3984?  It seems
 that it renders it obsolete.  Should the patch include removing the {{{:{
 }:}}} construct?

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4316#comment:16>
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