[GHC] #9834: GHC panic when used with deferred type errors

[GHC]

#9834: GHC panic when used with deferred type errors
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              Reporter:              |            Owner:
  Iceland_jack                       |           Status:  new
                  Type:  bug         |        Milestone:
              Priority:  normal      |          Version:  7.8.2
             Component:  Compiler    |         Keywords:
  (Type checker)                     |     Architecture:  Unknown/Multiple
            Resolution:              |       Difficulty:  Unknown
      Operating System:  Linux       |       Blocked By:
       Type of failure:  GHCi crash  |  Related Tickets:
             Test Case:              |
  typecheck/should_compile/T9834     |
              Blocking:              |
Differential Revisions:              |
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Changes (by simonpj):

 * testcase:   => typecheck/should_compile/T9834


Comment:

 OK well maybe it is recent, but at least it works now. I've added the
 module as a regression test.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9834#comment:5>
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