Issue 4500 - Fix element hiding integration tests

chrome/content/tests/elemhide.js

 (function()
 {
   let server = null;
   let frame = null;
 
   module("Element hiding", {
     setup: function()
     {
       prepareFilterComponents.call(this);
       preparePrefs.call(this);
@@ skipping 100 matching lines @@
     [["##div#test1", "@@localhost$generichide"], ["visible", "visible"]],
     [["##div#test1", "@@localhost$genericblock"], ["hidden", "visible"]],
     [["localhost##div#test1", "@@localhost$generichide"], ["hidden", "visible"]],
     [["~example.com##div#test1", "@@localhost$generichide"], ["visible", "visible"]],
     [["~example.com##div#test1", "@@localhost$genericblock"], ["hidden", "visible"]],
     [["~example.com,localhost##div#test1", "@@localhost$generichide"], ["hidden", "visible"]],
   ];
 
   function runTest([filters, expected], stage)
   {
-    for (let filter_text of filters)
-      FilterStorage.addFilter(Filter.fromText(filter_text));
+    for (let filterText of filters)
+      FilterStorage.addFilter(Filter.fromText(filterText));
 
     if (stage == 2)
       FilterStorage.addFilter(Filter.fromText("@@||localhost^$document"));
     else if (stage == 3)
       FilterStorage.addFilter(Filter.fromText("@@||localhost^$~document"));
     else if (stage == 4)
       FilterStorage.addFilter(Filter.fromText("@@||localhost^$elemhide"));
 
     // Second and forth runs are whitelisted, nothing should be hidden
     if (stage == 2 || stage == 4)
@@ skipping 37 matching lines @@
     4: "running with element hiding exception",
   };
 
   for (let test = 0; test < tests.length; test++)
   {
     let [filters, expected] = tests[test];
     for (let stage = 1; stage in stageDescriptions; stage++)
       asyncTest(filters.join(", ") + " (" + stageDescriptions[stage] + ")", runTest.bind(null, tests[test], stage));
   }
 })();