Instruction breakpoints should maybe use a different breakpoint icon

[isidorn]

#129161

@yuehuang010, @xisui-MSFT

Instructions breakpoints currently use the same icon as regular breakpoints.
We could introduce a new icon to make them more distinguishable?

Maybe a red square? We already have a diamond and triangle. @misolori what do you think? (instruction breakpoint can be added from the disassembly view which we just introduced this milestone).
@yuehuang010 @xisui-MSFT what does Visual Studio use, regular red circle?

[xisui-MSFT]

VS doesn't have a different icon. But we would like to use a different icon for this as this seems to be a convention in VS Code.

@yuehuang010 will work on this.

[yuehuang010]

@isidorn, Thoughts on this icons? ⯍/⯏

[isidorn]

@isidorn make sure it is red so it is aligned with other breakpoints.
I would just go with the red square 🟥

For reference checkout function breakpoint icons in vscode 🔺

I suggest that we only do this next milestone, so assigning to August.

[miguelsolorio]

So a red square would look something like:

[gjsjohnmurray]

See also #177221 for other discussions about breakpoint shapes.