Retarget clang 20

Author: MitalAshok

clang/test/CXX/drs/cwg28xx.cpp

@@ -30,7 +30,7 @@ using U2 = decltype(&main);
 #endif
 } // namespace cwg2811
 
-namespace cwg2813 { // cwg2813: 19
+namespace cwg2813 { // cwg2813: 20
 #if __cplusplus >= 202302L
 struct X {
   X() = default;

clang/www/cxx_dr_status.html

@@ -16694,7 +16694,7 @@ <h2 id="cxxdr">C++ defect report implementation status</h2>
     <td><a href="https://cplusplus.github.io/CWG/issues/2813.html">2813</a></td>
     <td>DR</td>
     <td>Class member access with prvalues</td>
-    <td class="unreleased" align="center">Clang 19</td>
+    <td class="unreleased" align="center">Clang 20</td>
   </tr>
   <tr class="open" id="2814">
     <td><a href="https://cplusplus.github.io/CWG/issues/2814.html">2814</a></td>