public void ParseDocumentTreatsTwoAtSignsAsEscapeSequence()
 {
     HtmlParserTestUtils.RunSingleAtEscapeTest(ParseDocumentTest, lastSpanAcceptedCharacters: AcceptedCharacters.Any);
 }
 public void ParseBlockTreatsTwoAtSignsAsEscapeSequence()
 {
     HtmlParserTestUtils.RunSingleAtEscapeTest(ParseBlockTest);
 }