BUG document.Math. (complete) ac-js2-build-prop-name-list error: (wrong-type-argument arrayp )

[fengjian]

(defun ac-js2-find-property (list-names)
  "Find the property definition that consists of LIST-NAMES.
Supports navigation to 'foo.bar = 3' and 'foo = {bar: 3}'."
  (catch 'prop-found
    (js2-visit-ast-root
     js2-mode-ast
     (lambda (node endp)
       (let ((parent (js2-node-parent node)))
         (unless endp
           (if (or (and (js2-prop-get-node-p node)
                    (not (or (js2-elem-get-node-p parent) (js2-call-node-p parent)))
                    ;;error: arrayp 
;;                    (equal list-names (ac-js2-build-prop-name-list node))
                    t
                    )
                   (and (js2-name-node-p node)
                        (js2-object-prop-node-p parent)
                        (string= (js2-name-node-name node)
                                 (first list-names))))
               (throw 'prop-found node))
           t))))))