[GHC] #15760: Preserve parens in TH

[GHC]

#15760: Preserve parens in TH
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        Reporter:  goldfire          |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Template Haskell  |              Version:  8.6.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #15815            |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by RyanGlScott):

 * related:   => #15815


Comment:

 See #15815 for a notable example of a bug that this issue causes.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15760#comment:2>
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