Returns a reference to the comments array for the query.
Because this method returns by reference, alter hooks may edit the comments array directly to make their changes. If just adding comments, however, the use of comment() is preferred.
Note that this method must be called by reference as well:
$comments =& $query
->getComments();
A reference to the comments array structure.
public function &getComments() {
return $this->comments;
}