[MI/RFC] Emit ^running via observer.

[Nick Roberts]

 > I still don't understand what you mean by "decouples the output from the
 > input".  GDB, both in sync and async mode is in perfect position to print
 > things as it sees fit. And MI notifications don't actually care about
 > 'current interpreter'. The *only* fundamental limitation of sync mode is
 > that no command will be processed when the target is running. Am I missing
 > something?

I think we're saying similar things.  You're saying that sync mode should
be able to generate MI output from CLI commands like "run", "next" etc.  I'm
just saying that I don't know how to do it and it's probably quite messy.

-- 
Nick                                           http://www.inet.net.nz/~nickrob