[GHC] #11253: Duplicate warnings for pattern guards and relevant features (e.g. View Patterns)

[GHC]

#11253: Duplicate warnings for pattern guards and relevant features (e.g. View
Patterns)
-------------------------------------+-------------------------------------
        Reporter:  gkaracha          |                Owner:  gkaracha
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.11
      Resolution:                    |             Keywords:  pattern
                                     |  matching, exhaustiveness
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Incorrect         |  Unknown/Multiple
  warning at compile-time            |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #595              |  Differential Rev(s):
       Wiki Page:                    |
  PatternMatchCheck,                 |
  PatternMatchCheckImplementation    |
-------------------------------------+-------------------------------------
Changes (by gkaracha):

 * Attachment "DuplicateWarn.hs" added.


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11253>
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