This changes the name of a NamedReference and I am not sure this change
has no side effects, so put this into an extra patch.
As usual: No behavior change is intended!
Split the vertical and horizontal pass into different property cache
This will allow to implement "height for with"
This patch does not port the Rust or C++ binding yet
- Mark builtin properties that are modified by the native code as output
- Record wether the property is set by code in the .60
- Add a field that will tell us if a property binding is constant