[GHC] #9793: Some as-patterns could be accepted in pattern synonyms

[GHC]

#9793: Some as-patterns could be accepted in pattern synonyms
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        Reporter:  cactus            |                Owner:  (none)
            Type:  feature request   |               Status:  new
        Priority:  normal            |            Milestone:  8.6.1
       Component:  Compiler (Type    |              Version:  7.8.3
  checker)                           |             Keywords:
      Resolution:                    |  PatternSynonyms
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D1666
       Wiki Page:                    |
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Comment (by simonpj):

 See https://github.com/ghc-proposals/ghc-proposals/pull/94, where I
 propose loosening the rules for as-patterns.

 Perhaps your use-case would strengthen the case. Can you explain it with
 code?  (You could do so here, and then add a comment to the proposal
 thread pointing to it._

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9793#comment:14>
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