Issue 5870 - Implement the new ElemHideEmulation filter type

test/compiled/Filter.cpp

 /*
  * 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 65 matching lines @@
     FilterPtr filter(Filter::FromText(text), false);
     EXPECT_FALSE(filter);
   }
   {
     OwnedString t(u"www.example.com#@#[-abp-properties='foo'bar']"_str);
     DependentString text(t);
 
     FilterPtr filter(Filter::FromText(text), false);
     EXPECT_FALSE(filter);
   }
+  {
+    OwnedString t(u"www.example.com#@#[-abp-properties='foo'bar]"_str);
+    DependentString text(t);
+
+    FilterPtr filter(Filter::FromText(text), false);
+    EXPECT_FALSE(filter);
+  }
+  {
+    OwnedString t(u"www.example.com#@#[-abp-properties=bar'foo']"_str);
+    DependentString text(t);
+
+    FilterPtr filter(Filter::FromText(text), false);
+    EXPECT_FALSE(filter);
+  }
 }