Add tests for \r and \r\n

These tricky sequences do terminate a tag name because they
are handled when normalizing newlines in pre-processing
(before tokenization).

Author: sirreal

tests/phpunit/tests/html-api/wpHtmlTagProcessorModifiableText.php

@@ -529,6 +529,10 @@ public static function data_script_tag_text_updates(): array {
 			'1</SCRIPT>/'                           => array( '<script></script>', '1</SCRIPT>/', '<script>1</\u0053CRIPT>/</script>' ),
 			'"</script>"'                           => array( '<script></script>', '"</script>"', '<script>"</\u0073cript>"</script>' ),
 			'"</ScRiPt>"'                           => array( '<script></script>', '"</ScRiPt>"', '<script>"</\u0053cRiPt>"</script>' ),
+			'Tricky script open tag with \r'        => array( '<script></script>', "<!-- <script\r>", "<script><!-- <\\u0073cript\r></script>" ),
+			'Tricky script open tag with \r\n'      => array( '<script></script>', "<!-- <script\r\n>", "<script><!-- <\\u0073cript\r\n></script>" ),
+			'Tricky script close tag with \r'       => array( '<script></script>', "// </script\r>", "<script>// </\\u0073cript\r></script>" ),
+			'Tricky script close tag with \r\n'     => array( '<script></script>', "// </script\r\n>", "<script>// </\\u0073cript\r\n></script>" ),
 			'Module tag'                            => array( '<script type="module"></script>', '"<script>"', '<script type="module">"<\u0073cript>"</script>' ),
 			'Tag with type'                         => array( '<script type="text/javascript"></script>', '"<script>"', '<script type="text/javascript">"<\u0073cript>"</script>' ),
 			'Tag with language'                     => array( '<script language="javascript"></script>', '"<script>"', '<script language="javascript">"<\u0073cript>"</script>' ),