[GHC] #14674: Deferring more levity polymorphism checks in indefinite backpack modules

[GHC]

#14674: Deferring more levity polymorphism checks in indefinite backpack modules
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        Reporter:  andrewthad        |                Owner:  (none)
            Type:  feature request   |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.4.1-alpha1
      Resolution:                    |             Keywords:  backpack
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 simonpj):

 We need Edward!

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14674#comment:3>
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