[debug_server] move Save core file to Debugger

[diver]

Ever since the introduction of core file support it was very rarely used to debug things (almost never judging from Trac attachments). Yet saving core file option is visible to user every the time some app crashes. Additionally, in certain locales crash dialog could be pretty wide.

An alternative would be to move this functionality to Debugger menu.

[pulkomandy]

It is possibly useful in cases where Debugger is not available, not working or not convenient. For example it is not installed, or it crashes when trying to debug the app.

I agree it may not be something to put directly in every users hands, but users should never see that crash dialog anyway, right? ;) So we can be a little more technical than usual here.

We can review the layout of that window if it's too wide. Maybe put the buttons vertically instead of horizontally?

[waddlesplash]

Debugger crashing, but "save report" / "write core file" not crashing, is an exceptional case that occurs very rarely, if ever, I think? So we don't need to worry about that.

Debugger is also included in the base system image, so it's always installed, no concern here.

The window is a standard info window, we don't want to make it look strange for no real reason.

So, moving it into the Debugger menu makes the most sense here. There's already a CLI command for it, adding a menu entry should be pretty easy.

[waddlesplash]

Done in hrev53104.

[nielx]

Assign tickets with status=closed and resolution=fixed within the R1/beta2 development window to the R1/beta2 Milestone