[GHC] #13363: Wildcarn patterns and COMPLETE sets can lead to misleading redundant pattern-match warnings

[GHC]

#13363: Wildcarn patterns and COMPLETE sets can lead to misleading redundant
pattern-match warnings
-------------------------------------+-------------------------------------
        Reporter:  RyanGlScott       |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.1
      Resolution:                    |             Keywords:
                                     |  PatternSynonyms,
                                     |  PatternMatchWarnings
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Incorrect         |  Unknown/Multiple
  error/warning at compile-time      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by gkaracha):

 Yes, I guess you're right. This seems like the discussion we had on
 Phab:D2669, but I thought you actually disabled the redundancy check when
 `COMPLETE` pragmas are involved so that these discrepancies don't show up,
 with the commit:

 - Don't warn about redundancy when COMPLETE is involved

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13363#comment:5>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler