[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:  new
        Priority:  normal            |        Milestone:  7.8.1
       Component:  Compiler          |          Version:  7.8.1-rc1
  (Parser)                           |         Keywords:  PolyKinds, ghc-
      Resolution:                    |  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:"d3af9807ca8a1db0bc9298ea50895ee9df55edb7/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="d3af9807ca8a1db0bc9298ea50895ee9df55edb7"
 Really fix #5682 (parsing of promoted datacons)

 Patch submitted by an anonymous friend on the bug tracker.

 This also fixes TH_RichKinds2 which had a slight message output wibble
 (it uses the qualified name of the promoted datacon)

 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:18>
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