[GHC] #9046: Panic in GHCi when using :print

[GHC]

#9046: Panic in GHCi when using :print
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              Reporter:  quchen      |            Owner:
                  Type:  bug         |           Status:  new
              Priority:  normal      |        Milestone:  7.8.4
             Component:  GHCi        |          Version:  7.8.2
            Resolution:              |         Keywords:
      Operating System:              |     Architecture:  Unknown/Multiple
  Unknown/Multiple                   |       Difficulty:  Unknown
       Type of failure:  GHCi crash  |       Blocked By:
             Test Case:              |  Related Tickets:
  tests/ghci.debugger/scripts/print036|
              Blocking:              |
Differential Revisions:              |
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Comment (by simonpj):

 This is clearly a bug.  (All panics are, really.) And hence embarrassing
 to have open for so long.  But I didn't write the code for the GHCi
 debugger, and I only partly understand it.  It needs love and care from
 someone.  At the moment this ticket is sitting in my "look at this when I
 have time" pile, but I never have time.

 It would be great if someone was willing to take the time to dig into how
 the debugger works, and maybe "own" it for the future.  The good thing is
 that it's only one or two modules, and there are few non-local
 ramifications, so it's a well-contained collection of issues.

 Also, this ticket a show-stopper for anyone?

 Simon

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9046#comment:12>
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