[BUG:MI] -break-list doesn't list multiple breakpoints

[Vladimir Prus]

Nick Roberts wrote:

>  > > >  > > As an alternative, I guess this line alone could be removed so
>  > > >  > > that -break-insert lists the multiple breakpoint locations
>  > > >  > > being set and the adjust MI documentation to explain this.
>  > > >  > 
>  > > >  > We should check what the new MI output looks like, and see if it
>  > > >  > breaks Emacs / Eclipse / Kdevelop.  It might be that easy.
>  > > > 
>  > > > It won't break Emacs becuase it doesn't use the output of
>  > > > -break-insert.
>  > > 
>  > > If the new output from -break-list works OK, that is.
>  > 
>  > It would be nice to actually *see* the examples of that new output ;-)
>  > My theory (and why I did not implemented that for MI), is that
>  > frontends will start showing breakpoint locations as if they were
>  > individual breakpoint which is likely will fail. To begin with, if
>  > frontend uses integer to represent breakpoint id, then "1.1" location
>  > id won't be representable.
> 
> The manual doesn't state that the breakpoint number will be a integer. 

The manual fails to state lots of things, so frontend naturally make various
assumptions.

> Without the file and line information, the frontend can't display
> breakpoint icons or display the relevant source in a window, which must be
> worse.

Given that such a change has a potential to totally break frontend,
I'm not sure we can talk in the abstract. If you send me the most
recent version of your patch, I can see if KDevelop will be happy,
or not.

- Volodya