eldritch horrors
89a0ddc108
checking whether a repl hook is set does not tell whether it's running, which in turn means we will enter a debug repl even when not debugging. this is not very useful when we have no debug frames to inspect at all, as commonly happens when starting a new repl with --debugger specified. Change-Id: I7065dc4ec29743bdd53ed99c29d6592e2ceea89c