[GHC] #13311: Audit shady uses of tcSplitSigmaTy

[GHC]

#13311: Audit shady uses of tcSplitSigmaTy
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        Reporter:  RyanGlScott       |                Owner:  RyanGlScott
            Type:  task              |               Status:  patch
        Priority:  normal            |            Milestone:  8.4.1
       Component:  Compiler (Type    |              Version:  8.1
  checker)                           |
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D3678
       Wiki Page:                    |
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Changes (by RyanGlScott):

 * status:  new => patch
 * differential:   => Phab:D3678


Comment:

 Interestingly, I can't produce the "unlifted bindings"-related panic
 anymore with the GHC 8.2 branch. But the other issue is simple enough to
 fix: Phab:D3678.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13311#comment:6>
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