javascript context scope has changed between scenegraph based version of QtQuick 1.1, and graphicsview based version

// ui.js
var WIDTH = 240
var HEIGHT = 230

// tools.js
function getWidth() {
    return UI.WIDTH
}

// main.qml
import Qt 4.7
import "ui.js" as UI
import "tools.js" as Tools

Text {
    width: UI.WIDTH
    height: UI.HEIGHT
    text: "Click to trigger bug!"
    MouseArea {
        anchors.fill: parent
        onClicked: console.debug(Tools.getWidth())
    }
}