[GHC] #14320: Brackets change meaning of value-constructor type

[GHC]

#14320: Brackets change meaning of value-constructor type
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        Reporter:  nr                |                Owner:  (none)
            Type:  bug               |               Status:  patch
        Priority:  normal            |            Milestone:
       Component:  Compiler (Type    |              Version:  8.2.1
  checker)                           |             Keywords:  GADT,
      Resolution:                    |  existential type
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D4072
       Wiki Page:                    |
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Comment (by nr):

 @RyanGIScott, yes thanks, sorry about the botch on the return type of
 `TEBad`.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14320#comment:4>
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