[GHC] #12968: GHC crash with TypeInType and pattern synonym

[GHC]

#12968: GHC crash with TypeInType and pattern synonym
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        Reporter:  dfeuer            |                Owner:
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash or panic                     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #12489            |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by Simon Peyton Jones <simonpj@…>):

 In [changeset:"f97d489911aabd2396f5df87efd7d1d164017142/ghc"
 f97d4899/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="f97d489911aabd2396f5df87efd7d1d164017142"
 Test Trac #12968, plus some comments
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12968#comment:4>
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