[GHC] #15870: No skolem info panic

[GHC]

#15870: No skolem info panic
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        Reporter:  sheaf             |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:  8.6.3
       Component:  Compiler (Type    |              Version:  8.6.2
  checker)                           |
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash or panic                     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by RyanGlScott):

 The regression was introduced in commit
 faec8d358985e5d0bf363bd96f23fe76c9e281f7 (`Track type variable scope more
 carefully.`).

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15870#comment:2>
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