[Lazarus] Unneeded Paint calls from LCL

[Martin Frb]

On 15/01/2020 12:02, Juha Manninen via lazarus wrote:
> I understood that Paint gets called by LCL excessively when a form is
> created or shown. Yes, I guess it should be optimized.
> Debugging the events flowing back and forth is challenging. Placing
> DebugLn() lines into relevant event handlers is the best way. And yes,
> it partly happens in widgetset code.
>

It should be possible to use "none breaking" breakpoints (without 
causing extra paint or focus events) and then go through the debug 
history to see stackframes.