[GHC] #13611: Segfault due to levity polymorphism of mkWeak#

[GHC]

#13611: Segfault due to levity polymorphism of mkWeak#
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        Reporter:  nomeata           |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.2.1
       Component:  Compiler          |              Version:  8.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by Iceland_jack):

 Replying to [comment:6 simonpj]:
 > and now we could have polymorphism over liftedness, but I just don't
 think it's worth it.

 Can it be added in the future if deemed useful?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13611#comment:7>
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