[GHC] #14796: Pretty Printing: GHC doesn't parenthesise (() :: Constraint)

[GHC]

#14796: Pretty Printing: GHC doesn't parenthesise (() :: Constraint)
-------------------------------------+-------------------------------------
        Reporter:  Iceland_jack      |                Owner:  (none)
            Type:  bug               |               Status:  patch
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.5
      Resolution:                    |             Keywords:
                                     |  TypeApplications
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #14808            |  Differential Rev(s):  Phab:D4408
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by RyanGlScott):

 * status:  new => patch
 * differential:   => Phab:D4408
 * related:   => #14808


Comment:

 Egads, there's an even more serious bug lurking here—the fact that you
 have to visibly apply the arguments to `ECC` in completely different
 orders on GHC 8.2.2/8.4.1 and HEAD! I've opened #14808 for this.

 In the meantime, I've opened Phab:D4408 for this bug, which is
 straightforward to fix.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14796#comment:6>
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