Issue 5174 - Allow '{' and '}' in selectors

test/filterClasses.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-present eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 367 matching lines @@
     doTest(text.replace("##", "#@#"), selector, selectorDomain);
   }
 
   test.done();
 };
 
 exports.testElemHideRulesWithBraces = function(test)
 {
   let filter = Filter.fromText("###foo{color: red}");
   test.equal(filter.type, "elemhide");
-  test.equal(filter.selector, "#foo\\x7B color: red\\x7D ");
+  test.equal(filter.selector, "#foo\\7B color: red\\7D ");
   filter.delete();
 
   filter = Filter.fromText("foo.com##[-abp-properties='/margin: [3-4]{2}/']");
   test.equal(filter.type, "elemhideemulation");
-  test.equal(filter.selector, "[-abp-properties='/margin: [3-4]\\x7B 2\\x7D /']");
+  test.equal(filter.selector, "[-abp-properties='/margin: [3-4]\\7B 2\\7D /']");
   filter.delete();
 
   test.done();
 };
 
 exports.testNotifications = function(test)
 {
   function checkNotifications(action, expected, message)
   {
     let result = null;
@@ skipping 42 matching lines @@
     filter.hitCount++;
   }, ["filter.hitCount", "foobar"], "Increasing filter hit counts");
   checkNotifications(() =>
   {
     filter.hitCount = 0;
   }, ["filter.hitCount", "foobar"], "Resetting filter hit counts");
 
   filter.delete();
   test.done();
 };