Adds a JavaScript file and a CSS file with a query string appended.
function common_test_js_and_css_querystring() {
drupal_add_library('system', 'drupalSettings');
drupal_add_js(drupal_get_path('module', 'node') . '/node.js');
drupal_add_css(drupal_get_path('module', 'node') . '/node.admin.css');
// A relative URI may have a query string.
drupal_add_css('/' . drupal_get_path('module', 'node') . '/node-fake.css?arg1=value1&arg2=value2');
return '';
}