ext/dom: small fixes Dom\AdjacentPosition (#4570)

Author: SakiTakamachi

reference/dom/dom/dom-adjacentposition.xml

@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
-<reference xml:id="enum.dom.adjacentposition" role="enum" xmlns="http://docbook.org/ns/docbook">
+<reference xml:id="enum.dom-adjacentposition" role="enum" xmlns="http://docbook.org/ns/docbook">
  <title>The Dom\AdjacentPosition Enum</title>
  <titleabbrev>Dom\AdjacentPosition</titleabbrev>
 
  <partintro>
-  <section xml:id="enum.dom.adjacentposition.intro">
+  <section xml:id="enum.dom-adjacentposition.intro">
    &reftitle.intro;
    <simpara>
     The <enumname>AdjacentPosition</enumname> enum is used to specify
@@ -14,7 +14,7 @@
    </simpara>
   </section>
 
-  <section xml:id="enum.dom.adjacentposition.synopsis">
+  <section xml:id="enum.dom-adjacentposition.synopsis">
    &reftitle.enumsynopsis;
 
    <enumsynopsis>

reference/dom/versions.xml

@@ -203,6 +203,7 @@
  <function name="dom_import_simplexml" from="PHP 5, PHP 7, PHP 8"/>
  <function name="dom\import_simplexml" from="PHP 8 &gt;= 8.4.0"/>
 
+ <function name="dom\adjacentposition" from="PHP 8 &gt;= 8.4.0"/>
  <function name="dom\attr" from="PHP 8 &gt;= 8.4.0"/>
  <function name="dom\cdatasection" from="PHP 8 &gt;= 8.4.0"/>
  <function name="dom\characterdata" from="PHP 8 &gt;= 8.4.0"/>