JScript Locals and Watchers show 'this [QObject]'

import QtQuick 1.0

Rectangle {
    width: 360
    height: 360
    Text {
        text: "Hello World"
        anchors.centerIn: parent
    }
    MouseArea {
        anchors.fill: parent
        onClicked: {
            var i = parent.width;
            f(i);
        }
    }
    function f(ii) {
        var x = ii;
        console.log("H");
    }
}