[GHC] #5108: Allow unicode sub/superscript symbols in operators (was: Allow unicode sub/superscript symbols in both identifiers and operators)

[GHC]

#5108: Allow unicode sub/superscript symbols in operators
-------------------------------------+-------------------------------------
        Reporter:                    |                   Owner:
  mikhail.vorozhtsov                 |
            Type:  feature request   |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  Compiler          |                 Version:  7.1
  (Parser)                           |                Keywords:  lexer
      Resolution:                    |  unicode
Operating System:  Unknown/Multiple  |            Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:  #10196            |  Differential Revisions:
-------------------------------------+-------------------------------------
Changes (by thomie):

 * status:  infoneeded => new
 * milestone:  8.0.1 =>


Comment:

 `vₐ = 1` is now accepted, but `m >>=₁ f` still isn't.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/5108#comment:19>
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