[GHC] #10162: Add unicode syntax for banana brackets

[GHC]

#10162: Add unicode syntax for banana brackets
-------------------------------------+-------------------------------------
        Reporter:  zardoz            |                Owner:  JoshPrice247
            Type:  feature request   |               Status:  new
        Priority:  low               |            Milestone:  ⊥
       Component:  Compiler          |              Version:  7.8.4
  (Parser)                           |             Keywords:  unicode,
      Resolution:                    |  UnicodeSyntax, newcomer
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D2012
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by Ben Gamari <ben@…>):

 In [changeset:"03a1bb4d010f94bed233ca261bf44e00c7bd9878/ghc"
 03a1bb4d/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="03a1bb4d010f94bed233ca261bf44e00c7bd9878"
 Add unicode syntax for banana brackets

 Summary:
 Add "⦇" and "⦈" as unicode alternatives for "(|" and "|)" respectively.

 This must be implemented differently than other unicode additions
 because ⦇" and "⦈" are interpretted as a $unigraphic rather than
 a $unisymbol.

 Test Plan: validate

 Reviewers: goldfire, bgamari, austin

 Reviewed By: bgamari, austin

 Subscribers: thomie, mpickering

 Differential Revision: https://phabricator.haskell.org/D2012

 GHC Trac Issues: #10162
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10162#comment:8>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler