Converted Doxygen to PHPDoc in eZContentObjectTrashNode
trashList returns an int when $asCount is set to true
The method originalParent() will never return an int
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.