Index: clang/test/CXX/drs/dr4xx.cpp
===================================================================
--- clang/test/CXX/drs/dr4xx.cpp
+++ clang/test/CXX/drs/dr4xx.cpp
@@ -79,6 +79,8 @@
 // dr404: na
 // (NB: also sup 594)
 
+// dr405: dup 218
+
 namespace dr406 { // dr406: yes
   typedef struct {
     static int n; // expected-error {{static data member 'n' not allowed in anonymous struct}}
Index: clang/www/cxx_dr_status.html
===================================================================
--- clang/www/cxx_dr_status.html
+++ clang/www/cxx_dr_status.html
@@ -2470,7 +2470,7 @@
     <td><a href="https://wg21.link/cwg405">405</a></td>
     <td>CD6</td>
     <td>Unqualified function name lookup</td>
-    <td class="none" align="center">Unknown</td>
+    <td class="full" align="center">Duplicate of <a href="#218">218</a></td>
   </tr>
   <tr id="406">
     <td><a href="https://wg21.link/cwg406">406</a></td>