[GHC] #12072: GHC panic on type wildcard in left-hand side of data family

[GHC]

#12072: GHC panic on type wildcard in left-hand side of data family
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        Reporter:  andreash          |                Owner:
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.10.3
      Resolution:  fixed             |             Keywords:
Operating System:  Linux             |         Architecture:  x86_64
 Type of failure:  Compile-time      |  (amd64)
  crash                              |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by Simon Peyton Jones <simonpj@…>):

 In [changeset:"f9e90bcb202b164189d71535eafbb39577682ff2/ghc"
 f9e90bcb/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="f9e90bcb202b164189d71535eafbb39577682ff2"
 Improve documentation for type wildcards

 This docmentation improvement was triggered by Trac #12072
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12072#comment:2>
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