Converted Doxygen to PHPDoc in eZContentObjectTrashNode
trashList returns an int when $asCount is set to true
EZP-20262 : fix include issue
EZP-20262 : no need to trigger autoload on second class_exists
The method originalParent() will never return an int
Merge pull request #658 from Tharkun/ezp-20262-include-issue

Fix EZP-20262: Classes override issue caused by includes
Merge pull request #647 from jeromegamez/phpdoc_ezcontenttrashnode

Converted Doxygen to PHPDoc in eZContentObjectTrashNode
Fix EZP-20949: Make sure parent is an object
This patch insures the parent was an object to avoid fatal errors if
the database is slighly corrupted.