Generalize recommendations to escape script in literals

Issue: #7179

source

@@ -59464,9 +59464,9 @@ o............A....e
 
   <p class="note">The easiest and safest way to avoid the rather strange restrictions described in
   this section is to always escape an ASCII case-insensitive match for "<code
-  data-x="">&lt;!--</code>" as "<code data-x="">&lt;\!--</code>", "<code
-  data-x="">&lt;script</code>" as "<code data-x="">&lt;\script</code>", and "<code
-  data-x="">&lt;/script</code>" as "<code data-x="">&lt;\/script</code>" when these sequences appear
+  data-x="">&lt;!--</code>" as "<code data-x="">\x3C!--</code>", "<code
+  data-x="">&lt;script</code>" as "<code data-x="">\x3Cscript</code>", and "<code
+  data-x="">&lt;/script</code>" as "<code data-x="">\x3C/script</code>" when these sequences appear
   in literals in scripts (e.g. in strings, regular expressions, or comments), and to avoid writing
   code that uses such constructs in expressions. Doing so avoids the pitfalls that the restrictions
   in this section are prone to triggering: namely, that, for historical reasons, parsing of
@@ -59551,8 +59551,8 @@ console.log(example);</code></pre>
    avoided entirely:</p>
 
    <pre><code class="html">&lt;script><mark>
-  // Note: `\s` is an escape sequence for `s`.
-  var example = 'Consider this string: &lt;\!-- &lt;\script>';
+  // Note: `\x3C` is an escape sequence for `&lt;`.
+  var example = 'Consider this string: \x3C!-- \x3Cscript>';
   console.log(example);
 </mark>&lt;/script>
 &lt;!-- this is just a comment between script blocks -->