function TryStatement( node ) {
		if ( node.handler && node.handler.param ) {
			node.handler.locals = node.handler.locals || [];
			appendUnique( node.handler.locals, node.handler.param.name );
			appendUnique( declarations, node.handler.param );
		}
	}
Callback invoked upon encountering a `TryStatement` AST node.

@private
@param {Node} node - AST node
@param {Array} parents - array of parent AST nodes