[GHC] #15038: Memory Corruption (strange closure type)

[GHC]

#15038: Memory Corruption (strange closure type)
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        Reporter:  andrewthad        |                Owner:  (none)
            Type:  bug               |               Status:  merge
        Priority:  highest           |            Milestone:  8.4.3
       Component:  Compiler          |              Version:  8.4.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Runtime crash     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #9718             |  Differential Rev(s):  Phab:D4680
       Wiki Page:                    |
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Comment (by andrewthad):

 I just confirmed that my original library no longer crashes when built
 with GHC head. If it is possible to release this fix with GHC 8.4.3, I
 would greatly appreciate it.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15038#comment:42>
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