[GHC] #14646: GHC 8.4.1 regression: rank-n types no longer parenthesized when pretty-printed

[GHC]

#14646: GHC 8.4.1 regression: rank-n types no longer parenthesized when pretty-
printed
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        Reporter:  RyanGlScott       |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  high              |            Milestone:  8.4.1
       Component:  GHC API           |              Version:  8.4.1-alpha1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Incorrect result  |  Unknown/Multiple
  at runtime                         |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by RyanGlScott):

 This regression was caused by commit
 3b23f680c2b1f80b693eb8896fb21e4bbf8edc7e (`Remove HsContext from
 ppr_mono_ty, and remove ppParendHsType`).

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14646#comment:1>
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