[GHC] #10283: Make it possible to suppress warnings produced by -fdefer-type-errors

[GHC]

#10283: Make it possible to suppress warnings produced by -fdefer-type-errors
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        Reporter:  adamgundry        |                   Owner:
            Type:  feature request   |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  Compiler (Type    |                 Version:  7.10.1
  checker)                           |                Keywords:  newcomer
      Resolution:                    |            Architecture:
Operating System:  Unknown/Multiple  |  Unknown/Multiple
 Type of failure:  None/Unknown      |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:  D864
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Changes (by erikd):

 * differential:   => D864


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10283#comment:4>
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