Add back the late-specified return type paper

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122317 91177308-0d34-0410-b5e6-96231b3b80d8

www/cxx_status.html

@@ -579,6 +579,15 @@ welcome!</p>
   <td></td>
 </tr>
 <tr><td colspan="7" class="category">Things Completely New</td></tr>
+<tr>
+  <td>Late-specified return type</td>
+  <td></td>
+  <td></td>
+  <td></td>
+  <td></td>
+  <td>8.3.5</td>
+  <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2445.html">N2445</a></td>
+</tr>
 <tr>
   <td>lambda expressions</td>
   <td></td>