[fpc-pascal] += property bug?

[Ryan Joseph]

> On Aug 11, 2019, at 11:41 AM, Sven Barth via fpc-pascal <fpc-pascal at lists.freepascal.org> wrote:
> 
> This is forbidden by design.

Why? It makes sense it should resolve to: d.setter(d.getter + 10) but maybe there’s a problem?

Regards,
	Ryan Joseph