>Scope resolution don't see hidden properties.
I don't have the help handy right now, but isn't this how hidden properties are defined? Shouldn't you use private properties instead, if you want to use them in inherited classes?
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)