[GHC] #1047: Increase gurantees of semantics of block/unblock/throwTo

[GHC]

#1047: Increase gurantees of semantics of block/unblock/throwTo
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        Reporter:  ChrisKuklewicz    |         Owner:  igloo
            Type:  merge             |        Status:  closed
        Priority:  normal            |     Milestone:  6.6.1
       Component:  Runtime System    |       Version:  6.6
      Resolution:  fixed             |      Keywords:  concurrency
Operating System:  Unknown/Multiple  |  Architecture:  Unknown/Multiple
      Difficulty:  Unknown           |     Test Case:  conc065, conc066
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Comment (by Simon Marlow <simonmar@…>):

 In [changeset:"d0d2945bc0d01343ac420276cc81801882bcbe08/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="d0d2945bc0d01343ac420276cc81801882bcbe08"
 tests for #1047
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/1047#comment:8>
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