[GHC] #5911: Add write-only variant of newTChan

[GHC]

#5911: Add write-only variant of newTChan
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    Reporter:  joeyadams          |       Owner:                  
        Type:  feature request    |      Status:  new             
    Priority:  normal             |   Milestone:  7.6.1           
   Component:  libraries (other)  |     Version:  7.4.1           
    Keywords:                     |          Os:  Unknown/Multiple
Architecture:  Unknown/Multiple   |     Failure:  None/Unknown    
  Difficulty:  Unknown            |    Testcase:                  
   Blockedby:                     |    Blocking:                  
     Related:                     |  
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Changes (by pcapriotti):

  * difficulty:  => Unknown
  * milestone:  => 7.6.1


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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5911#comment:1>
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