function validate( node ) {
		var comment;
		var i;

		comments = source.getCommentsInside( node );
		for ( i = 0; i < comments.length; i++ ) {
			comment = comments[i];
			if ( comment.type !== 'Shebang' && !visited[comment.range] ) {
				processComment( comment );
			}
			visited[comment.range] = true;
		}
	}
Checks for empty code comments.

@private
@param {ASTNode} node - program to examine