[clang] [NFC] [C++] [Modules] Mark P2615 as implemented and add test (PR #147135)

[Ashwin Kishin Banwari via cfe-commits]

https://github.com/kish1n created https://github.com/llvm/llvm-project/pull/147135

This is already implemented. See godbolt: https://godbolt.org/z/1ra4Ka8od

>From 088b7af5c463b46af8261033ea778fa383a138c7 Mon Sep 17 00:00:00 2001
From: Ashwin Banwari <ashwinkbanwari at gmail.com>
Date: Sat, 5 Jul 2025 01:55:52 -0700
Subject: [PATCH] mark P2615 as implemented

---
 clang/test/SemaCXX/P2615.cpp | 11 +++++++++++
 clang/www/cxx_status.html    |  2 +-
 2 files changed, 12 insertions(+), 1 deletion(-)
 create mode 100644 clang/test/SemaCXX/P2615.cpp

diff --git a/clang/test/SemaCXX/P2615.cpp b/clang/test/SemaCXX/P2615.cpp
new file mode 100644
index 0000000000000..fed177c21bc79
--- /dev/null
+++ b/clang/test/SemaCXX/P2615.cpp
@@ -0,0 +1,11 @@
+// RUN: rm -rf %t
+// RUN: split-file %s %t
+
+
+// RUN: %clang_cc1 -std=c++20 -verify -fsyntax-only %t/A.cpp
+
+//--- A.cpp
+// expected-no-diagnostics
+export module A;
+export namespace N {int x = 42;}
+export using namespace N;
diff --git a/clang/www/cxx_status.html b/clang/www/cxx_status.html
index 831f79f7cf17a..16e90a4dbb209 100755
--- a/clang/www/cxx_status.html
+++ b/clang/www/cxx_status.html
@@ -943,7 +943,7 @@ <h2 id="cxx20">C++20 implementation status</h2>
       </tr>
       <tr> <!-- from Kona 2022 -->
         <td><a href="https://wg21.link/P2615R1">P2615R1</a> (<a href="#dr">DR</a>)</td>
-        <td class="none" align="center">No</td>
+        <td class="full" align="center">Clang 17</td>
       </tr>
       <tr> <!-- from Issaquah 2023 -->
         <td><a href="https://wg21.link/P2788R0">P2788R0</a> (<a href="#dr">DR</a>)</td>