[GHC] #15264: Warn about implicit kind variables with -Wcompat

[GHC]

#15264: Warn about implicit kind variables with -Wcompat
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        Reporter:  int-index         |                Owner:  (none)
            Type:  task              |               Status:  closed
        Priority:  normal            |            Milestone:  8.6.1
       Component:  Compiler          |              Version:  8.5
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Poor/confusing    |            Test Case:
  error message                      |  dependent/should_compile/T15264
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D4834
       Wiki Page:                    |
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Changes (by simonpj):

 * testcase:   => dependent/should_compile/T15264


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15264#comment:6>
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