[GHC] #12447: Pretty-printing of equality `~` without parentheses

[GHC]

#12447: Pretty-printing of equality `~` without parentheses
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        Reporter:  Iceland_jack      |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by Ryan Scott <ryan.gl.scott@…>):

 In [changeset:"6a9b9b431dcc94849d14c13639eb2f713e5aa1f4/ghc"
 6a9b9b43/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="6a9b9b431dcc94849d14c13639eb2f713e5aa1f4"
 Mark #12447's test case as expected to pass

 This appears to have been fixed at some point between GHC 8.0 and
 8.2.
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12447#comment:5>
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