[GHC] #8429: GHC.Base.{breakpoint, breakpointCond} do nothing

[GHC]

#8429: GHC.Base.{breakpoint, breakpointCond} do nothing
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        Reporter:  refold            |            Owner:
            Type:  bug               |           Status:  new
        Priority:  normal            |        Milestone:
       Component:  Compiler          |          Version:  7.6.3
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:  1377
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Comment (by ntc2):

 Replying to [comment:4 refold]:
 > Replying to [comment:3 simonmar]:
 > >
 > > Would someone like to go ahead and remove them?
 >
 > Would it be possible to make them work again? I'm willing to write a
 patch if someone gives me advice on where to start.

 That would be great! I've summarized some workarounds
 [http://stackoverflow.com/questions/19283911/how-do-i-use-ghc-exts-
 breakpoint/19304091#19304091 here], but they're not very good.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8429#comment:5>
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