[GHC] #15858: Enabling a pure Plugin with existing build output never triggers recompilation

[GHC]

#15858: Enabling a pure Plugin with existing build output never triggers
recompilation
-------------------------------------+-------------------------------------
        Reporter:  DanielG           |                Owner:  (none)
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:  8.8.1
       Component:  Compiler          |              Version:  8.7
      Resolution:  fixed             |             Keywords:  Plugins
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Other             |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D5299
       Wiki Page:                    |
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Changes (by bgamari):

 * status:  patch => closed
 * resolution:   => fixed
 * milestone:   => 8.8.1


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15858#comment:5>
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