[GHC] #12156: -fdefer-typed-holes causes panic on unbound variable

[GHC]

#12156: -fdefer-typed-holes causes panic on unbound variable
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        Reporter:  osa1              |                Owner:
            Type:  bug               |               Status:  merge
        Priority:  high              |            Milestone:  8.0.2
       Component:  Compiler (Type    |              Version:  8.1
  checker)                           |
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:  partial-
                                     |  sigs/should_compile/T12156
      Blocked By:                    |             Blocking:
 Related Tickets:  #10569            |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by simonpj):

 * testcase:   => partial-sigs/should_compile/T12156
 * status:  new => merge
 * milestone:   => 8.0.2


Comment:

 Thanks a great report.

 Simon

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12156#comment:3>
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