Description:
------------
None of DOM XML internal objects expose the class properties to Reflection* objects.

This breaks PHP code assist for these objects in Eclipse PDT.

Reproduce code:
---------------
<?php
ReflectionClass::export('DOMDocument');
?>


Expected result:
----------------
Class [ <internal:dom> class DOMDocument extends DOMNode ] {

  - Constants [0] {
  }

  - Static properties [0] {
  }

  - Static methods [0] {
  }

  - Properties [14] {
       [ list of properties ]

  }


Actual result:
--------------
Class [ <internal:dom> class DOMDocument extends DOMNode ] {

  - Constants [0] {
  }

  - Static properties [0] {
  }

  - Static methods [0] {
  }

  - Properties [0] {
  }