[GHC] #13022: Pattern Synonyms using other synonyms causes ghc panic

[GHC]

#13022: Pattern Synonyms using other synonyms causes ghc panic
-------------------------------------+-------------------------------------
        Reporter:  AveryGlitch       |                Owner:
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
      Resolution:  duplicate         |             Keywords:
                                     |  PatternSynonyms
Operating System:  Linux             |         Architecture:  x86_64
 Type of failure:  Compile-time      |  (amd64)
  crash or panic                     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by mpickering):

 * keywords:   => PatternSynonyms
 * status:  new => closed
 * resolution:   => duplicate


Comment:

 This is fixed in HEAD. Duplicate of #12007 . Thanks!

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13022#comment:1>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler