[GHC] #5682: Properly parse promoted data constructor operators

[GHC]

#5682: Properly parse promoted data constructor operators
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        Reporter:  lunaris           |            Owner:
            Type:  bug               |           Status:  closed
        Priority:  normal            |        Milestone:  7.8.1
       Component:  Compiler          |          Version:  7.8.1-rc1
  (Parser)                           |         Keywords:  PolyKinds, ghc-
      Resolution:  fixed             |  kinds
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  GHC rejects       |       Difficulty:  Unknown
  valid program                      |       Blocked By:
       Test Case:                    |  Related Tickets:  #8486
  parser/should_compile/T5682        |
        Blocking:                    |
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Comment (by Austin Seipp <austin@…>):

 In [changeset:"5a576754d745171422d13cd1dba69dd874714cf1/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="5a576754d745171422d13cd1dba69dd874714cf1"
 Add a test for d3af980 (#5682)

 Signed-off-by: Austin Seipp <austin at well-typed.com>
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/5682#comment:21>
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