[GHC] #4959: Warning about variables with leading underscore that are used anyway

[GHC]

#4959: Warning about variables with leading underscore that are used anyway
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        Reporter:  Lemming           |            Owner:
            Type:  feature request   |           Status:  new
        Priority:  low               |        Milestone:  7.10.1
       Component:  Compiler          |          Version:  7.0.1
  (Parser)                           |         Keywords:  warning unused
      Resolution:                    |  underscore variable
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Changes (by hvr):

 * difficulty:   => Unknown
 * milestone:  7.6.2 => 7.10.1


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4959#comment:4>
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