[GHC] #15529: runtime bug when profiling retainers

[GHC]

#15529: runtime bug when profiling retainers
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        Reporter:  flip101           |                Owner:  (none)
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:  8.6.1
       Component:  Compiler          |              Version:  8.4.3
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D5075
       Wiki Page:                    |
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Comment (by MikolajKonarski):

 User plea: could you milestone this to 8.4.5 once such milestone exists?
 Ömer says this should be rather safe to merge and possibly it's the last
 bit needed for my code to retainer and biographical profile correctly (I'm
 stuck at 8.4 due to Windows Vista compatibility, ghcjs compatiblity and a
 couple of other packages that haven't yet caught up with 8.6). Thank you!

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15529#comment:13>
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