Description

The VarDumper component is shipped with a DateCaster class that cast DateTimeInterface objects.
When dumping a child class of DateTime with additional properties, those properties will not be displayed.

Example

I recently worked with azuyalabs/yasumi which introduce a Holiday class extending DateTime.
Here's the result when I dump a Holiday instance:

I've started on a PR to have the following result:

But before submitting it, I would like to know if hiding child properties is intended ?