[GHC] #11053: Add a warning for pattern synonyms without signatures

[GHC]

#11053: Add a warning for pattern synonyms without signatures
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        Reporter:  mpickering        |                Owner:  mpickering
            Type:  feature request   |               Status:  closed
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.10.2
      Resolution:  fixed             |             Keywords:  newcomer
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
                                     |  patsyns/T11053
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by mpickering):

 * status:  new => closed
 * testcase:   => patsyns/T11053
 * resolution:   => fixed


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11053#comment:3>
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