[GHC] #14808: GHC HEAD regression: GADT constructors no longer quantify tyvars in topological order

[GHC]

#14808: GHC HEAD regression: GADT constructors no longer quantify tyvars in
topological order
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        Reporter:  RyanGlScott       |                Owner:  goldfire
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:  8.6.1
       Component:  Compiler (Type    |              Version:  8.5
  checker)                           |
      Resolution:                    |             Keywords:  GADTs
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #14529, #14796    |  Differential Rev(s):  Phab:D4413
       Wiki Page:                    |
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Comment (by Richard Eisenberg <rae@…>):

 In [changeset:"7f4dd888f12ec9a24cc2d7f60f214706bd33a1ab/ghc" 7f4dd88/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="7f4dd888f12ec9a24cc2d7f60f214706bd33a1ab"
 Note [Ordering of implicit variables]

 This addresses #14808

 [ci skip]
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14808#comment:7>
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