[GHC] #13132: Compilation fails with a panic: get_op runContT

[GHC]

#13132: Compilation fails with a panic: get_op runContT
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        Reporter:  PoroCYon          |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:  ORF
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash or panic                     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by simonpj):

 Ben/David/Reid: could you fix the unambiguous case as above, add a test;
 and add another expect_broken test for the ambiguous case.  And then
 assign to Adam?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13132#comment:7>
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