[GHC] #9516: unsafeUnmask unmasks even inside uninterruptibleMask

[GHC]

#9516: unsafeUnmask unmasks even inside uninterruptibleMask
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        Reporter:  edsko             |                   Owner:  simonmar
            Type:  bug               |                  Status:  closed
        Priority:  normal            |               Milestone:  8.0.1
       Component:  Runtime System    |                 Version:  7.8.2
      Resolution:  fixed             |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:  Phab:D181
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Changes (by bgamari):

 * milestone:   => 8.0.1


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9516#comment:5>
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