Bindings-generator treats `enum` as `int`.
So you just need to define the constant in `jsb_cocos2d.js`.
```js
cc.RESOLUTION_POLICY = {
    // The entire application is visible in the specified area without trying to preserve the original aspect ratio.
    // Distortion can occur, and the application may appear stretched or compressed.
    EXACTFIT:0,
    // The entire application fills the specified area, without distortion but possibly with some cropping,
    // while maintaining the original aspect ratio of the application.
    NOBORDER:1,
    // The entire application is visible in the specified area without distortion while maintaining the original
    // aspect ratio of the application. Borders can appear on two sides of the application.
    SHOW_ALL:2,
    // The application takes the height of the design resolution size and modifies the width of the internal
    // canvas so that it fits the aspect ratio of the device
    // no distortion will occur however you must make sure your application works on different
    // aspect ratios
    HEIGHT:3,
    // The application takes the width of the design resolution size and modifies the height of the internal
    // canvas so that it fits the aspect ratio of the device
    // no distortion will occur however you must make sure your application works on different
    // aspect ratios
    WIDTH:4,

    UNKNOWN:5
};
```