Normative: update Annex B regexp grammar

The re-definitions of ClassAtomNoDash and ClassAtomNoDashInRange should
have had their uses updated with the previous Annex B updates,
but only their definitions  were.

spec.html

@@ -36042,9 +36042,9 @@ <h1>Pattern Semantics</h1>
         <p>The production <emu-grammar>ClassAtomInRange :: ClassAtomNoDashInRange</emu-grammar> evaluates by evaluating |ClassAtomNoDashInRange| to obtain a CharSet and returning that CharSet.</p>
 
         <p>ClassAtomNoDash (<emu-xref href="#sec-classatomnodash"></emu-xref>) includes the following additional evaluation rules:</p>
-        <p>The production <emu-grammar>ClassAtomNoDash :: SourceCharacter but not one of `]` or `-`</emu-grammar> evaluates by returning a one-element CharSet containing the character represented by |SourceCharacter|.</p>
+        <p>The production <emu-grammar>ClassAtomNoDash :: SourceCharacter but not one of `\` or `]` or `-`</emu-grammar> evaluates by returning a one-element CharSet containing the character represented by |SourceCharacter|.</p>
         <p>The production <emu-grammar>ClassAtomNoDashInRange :: `\` ClassEscape</emu-grammar> evaluates by evaluating |ClassEscape| to obtain a CharSet and returning that CharSet.</p>
-        <p>The production <emu-grammar>ClassAtomNoDashInRange :: SourceCharacter but not one of `]` or `-`</emu-grammar> evaluates by returning a one-element CharSet containing the character represented by |SourceCharacter|.</p>
+        <p>The production <emu-grammar>ClassAtomNoDashInRange :: SourceCharacter but not one of `\` or `]` or `-`</emu-grammar> evaluates by returning a one-element CharSet containing the character represented by |SourceCharacter|.</p>
 
         <p>ClassEscape (<emu-xref href="#sec-classescape"></emu-xref>) includes the following additional evaluation rules:</p>
         <p>The production <emu-grammar>ClassEscape :: DecimalEscape [> but only if &hellip;]</emu-grammar> evaluates as follows:</p>