[GHC] #15761: pprFamInstLHS drops parentheses

[GHC]

#15761: pprFamInstLHS drops parentheses
-------------------------------------+-------------------------------------
        Reporter:  goldfire          |                Owner:  (none)
            Type:  bug               |               Status:  merge
        Priority:  normal            |            Milestone:  8.6.2
       Component:  Compiler          |              Version:  8.6.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
                                     |  printer/T15761
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by RyanGlScott):

 * testcase:   => printer/T15761
 * milestone:   => 8.6.2


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15761#comment:3>
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