avoid -break-list calls

[Niko Sams]

Hi,

I'm trying to make stepping in the debugger faster by avoiding unneded commands.
So far stack view and variable view is only updated when they are shown.

But -break-list (returns all breakpoints) still is there.
Afaik it is needed because the user can insert/remove/modify breakpoints using
the gdb view. If the user executes "break main.cpp:12" this breakpoint
is automatically
added to the breakpoint widget.
Problem: this happens not immideately but after the next debugger break.

What could we do:
1. remove -break-list completely. If the user inserts custom
breakpoints he doesn't
have to see them in the breakpoint widget. This is a problem if the
user changes/deletes
breakpoints that kdevelop inserted. I don't think that users will use
gdb view to modify
breakpoints commonly.

2. call -break-list only after the user executed a command in the gdb
view. We could
even sniff for break commands and do the update only after such a command.

3. leave like it is but execute -break-list only if the user executed
a command using
gdb view. (doesn't solve the problem mentioned above).

4. leave everything like it is because -break-list is needed for
something else I missed.

Niko