So when using the loader outside of the SDK (i.e. devtools or wherever), it's not necessary to reload the Loader module in the options themselves:

```
  let loaderSandbox = loadSandbox('resource://..'toolkit/loader');
  let loaderModule = loaderSandbox.exports; 
  loaderModule.Loader({
    modules: {
      'toolkit/loader': loaderSandbox.exports
    }
  });
```