[GHC] #13804: MonoLocalBinds/RankNTypes type inference regression in GHC 8.2

[GHC]

#13804: MonoLocalBinds/RankNTypes type inference regression in GHC 8.2
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        Reporter:  RyanGlScott       |                Owner:  (none)
            Type:  bug               |               Status:  merge
        Priority:  highest           |            Milestone:
       Component:  Compiler (Type    |              Version:  8.2.1-rc2
  checker)                           |
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #11698            |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by simonpj):

 * status:  new => merge


Comment:

 It took me a surprisingly long time to really understand what's going on
 here, but I hope that the new documentation will help for next time!

 Probably merge.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13804#comment:7>
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