[GHC] #14999: unwinding info for stg_catch_frame is wrong

[GHC]

#14999: unwinding info for stg_catch_frame is wrong
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        Reporter:  niteria           |                Owner:  niteria
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.4.3
       Component:  Compiler          |              Version:
      Resolution:                    |             Keywords:
Operating System:  Linux             |         Architecture:  x86_64
 Type of failure:  Debugging         |  (amd64)
  information is incorrect           |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by bgamari):

 > I couldn't find a relevant note, so I resorted to experimentation. It
 appears that the unwind annotation reflects the state after A, but before
 B.

 That is correct.

 Indeed it looks like my patch is wrong. I don't know what I was thinking
 when I wrote it. Good catch!

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14999#comment:3>
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