[GHC] #14552: GHC panic on pattern synonym

[GHC]

#14552: GHC panic on pattern synonym
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        Reporter:  Iceland_jack      |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.3
      Resolution:                    |             Keywords:
                                     |  PatternSynonyms, TypeInType,
                                     |  ViewPatterns
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
                                     |  testsuite/tests/patsyn/should_fail/T14552
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by simonpj):

 * testcase:   => testsuite/tests/patsyn/should_fail/T14552


Comment:

 OK the main fix here is comment:7.  I'm not terribly happy with the error
 message, but it's better than a crash.  Iceland Jack: ok?

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14552#comment:8>
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