Partial GMP sync with EN

This fixes one RelaxNG violation

Author: Girgias

reference/gmp/gmp.xml

@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- EN-Revision: 8932dc479ab319693fe984a4eed2b3c768540256 Maintainer: pastore Status: ready -->
-
+<!-- EN-Revision: 4d17b7b4947e7819ff5036715dd706be87ae4def Maintainer: pastore Status: ready -->
 <reference xml:id="class.gmp" role="class" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xi="http://www.w3.org/2001/XInclude">
 
  <title>La classe GMP</title>
@@ -25,23 +24,27 @@
   </section>
 
   <section xml:id="gmp.synopsis">
-   <classsynopsis>
-    <ooclass><classname>GMP</classname></ooclass>
+   &reftitle.classsynopsis;
+
+   <classsynopsis class="class">
+    <ooclass>
+     <classname>GMP</classname>
+    </ooclass>
 
-    <classsynopsisinfo>
-     <ooclass>
-      <classname>GMP</classname>
-     </ooclass>
-     <oointerface>
-      <interfacename>Serializable</interfacename>
-     </oointerface>
-    </classsynopsisinfo>
+    <classsynopsisinfo role="comment">&Methods;</classsynopsisinfo>
+    <xi:include xpointer="xmlns(db=http://docbook.org/ns/docbook) xpointer(id('class.gmp')/db:refentry/db:refsect1[@role='description']/descendant::db:constructorsynopsis[@role='GMP'])">
+     <xi:fallback/>
+    </xi:include>
+    <xi:include xpointer="xmlns(db=http://docbook.org/ns/docbook) xpointer(id('class.gmp')/db:refentry/db:refsect1[@role='description']/descendant::db:methodsynopsis[@role='GMP'])">
+     <xi:fallback/>
+    </xi:include>
    </classsynopsis>
   </section>
  </partintro>
 
-</reference>
+ &reference.gmp.entities.gmp;
 
+</reference>
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