JS: Add a query ID

Author: asgerf

javascript/ql/test/query-tests/Expressions/UnneededDefensiveProgramming/module-environment-detection.js

@@ -20,5 +20,5 @@ if (typeof exports !== 'undefined') {
 
 (function(){
     var module;
-    if(typeof module === 'undefined'); // $ Alert
+    if(typeof module === 'undefined'); // $ Alert[js/unneeded-defensive-code]
 });