[GHC] #15779: Follow-ups to D5169

[GHC]

#15779: Follow-ups to D5169
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        Reporter:  bgamari           |                Owner:  (none)
            Type:  task              |               Status:  new
        Priority:  highest           |            Milestone:  8.8.1
       Component:  Compiler          |              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:                    |  Differential Rev(s):  Phab:D5270
       Wiki Page:                    |
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Changes (by watashi):

 * differential:   => Phab:D5270


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15779#comment:3>
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