[clang-tools-extra] [llvm] [clang] [clang] Add test for CWG472 (PR #67948)

[Richard Smith via cfe-commits]

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@@ -2871,7 +2871,7 @@ <h2 id="cxxdr">C++ defect report implementation status</h2>
     <td><a href="https://cplusplus.github.io/CWG/issues/472.html">472</a></td>
     <td>drafting</td>
     <td>Casting across protected inheritance</td>
-    <td align="center">Not resolved</td>
+    <td class="none" align="center">No</td>
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zygoloid wrote:

For `"no drafting" status, can we say something different here? I think something like "Not resolved, probably no" would be better, given that we don't actually know what the resolution will be, and if it ends up resolved NAD then we actually do implement it correctly :-)

https://github.com/llvm/llvm-project/pull/67948