[clang] [NFC][C++][Modules] Mark P2788R0(DR) as implemented and added more test (PR #144214)

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@@ -905,7 +905,7 @@ <h2 id="cxx20">C++20 implementation status</h2>
       </tr>
       <tr> <!-- from Issaquah 2023 -->
         <td><a href="https://wg21.link/P2788R0">P2788R0</a> (<a href="#dr">DR</a>)</td>
-        <td class="none" align="center">No</td>
+        <td class="none" align="center">Clang 17</td>
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yronglin wrote:

Good catch! Thanks for the review, fixed.

https://github.com/llvm/llvm-project/pull/144214