[GHC] #14441: GHC HEAD regression involving type families in kinds

[GHC]

#14441: GHC HEAD regression involving type families in kinds
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        Reporter:  RyanGlScott       |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  high              |            Milestone:  8.4.1
       Component:  Compiler          |              Version:  8.3
      Resolution:                    |             Keywords:  TypeInType,
                                     |  TypeFamilies
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #13790            |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by simonpj):

 We have in play #12919, which completely rewrites the flattening code.  It
 also fixes at least six other tickets: the current setup is outright
 wrong.

 So Richard and I propose to park this bug and return to it when #12919 is
 committed.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14441#comment:3>
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