[GHC] #11336: GHC craches on this combination of ViewPatterns and PatternSynonyms

[GHC]

#11336: GHC craches on this combination of ViewPatterns and PatternSynonyms
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        Reporter:  baramoglo         |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.10.2
      Resolution:                    |             Keywords:
                                     |  PatternSynonyms
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash                              |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by simonpj):

 Happily this works in HEAD, and hence (I expect -- someone pls check) GHC
 8.0.

 I don't think we'll fix 7.10.  Pattern synonyms have had a major re-work
 since then.

 Simon

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11336#comment:3>
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