[GHC] #14720: GHC 8.4.1-alpha regression with TypeInType

[GHC]

#14720: GHC 8.4.1-alpha regression with TypeInType
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        Reporter:  RyanGlScott       |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  high              |            Milestone:  8.4.1
       Component:  Compiler (Type    |              Version:  8.4.1-alpha1
  checker)                           |
      Resolution:                    |             Keywords:  TypeInType
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by RyanGlScott):

 * cc: goldfire (added)


Comment:

 This regression was introduced in commit
 8e15e3d370e9c253ae0dbb330e25b72cb00cdb76 (`Improve error messages around
 kind mismatches.`).

 I'm unsure if this is related to #14038 (which was also triggered by the
 same commit).

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14720#comment:1>
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