Issue 5957 - Get the unit tests passing again

qunit/tests/filterValidation.js

 "use strict";
 
 {
   const {parseFilter, parseFilters} = require("filterValidation");
   const {BlockingFilter,
          ElemHideFilter,
          CommentFilter} = require("filterClasses");
 
-  module("Filter validation");
+  QUnit.module("Filter validation");
 
   test("Detecting invalid filters", () =>
   {
     equal(parseFilter("||example.com^$unknown").error.type, "invalid-filter",
           "unknown option");
     equal(parseFilter("[foobar]").error.type, "unexpected-filter-list-header",
           "filter list header");
     equal(parseFilter("##[foo").error.type, "invalid-css-selector",
           "invalid selector");
     ok(
@@ skipping 44 matching lines @@
     ok(result.filters[0] instanceof BlockingFilter, "1st filter is blocking");
     equal(result.filters[0].text, "||example.com^", "1st filter text matches");
 
     ok(result.filters[1] instanceof ElemHideFilter, "2nd filter is elemhide");
     equal(result.filters[1].text, "###foobar", "2nd filter text matches");
 
     ok(result.filters[2] instanceof CommentFilter, "3rd filter is comment");
     equal(result.filters[2].text, "! foo bar", "3rd filter text matches");
   });
 }