[clang] [clang] Add tests for some CWG 5xx issues (PR #87909)

[Aaron Ballman via cfe-commits]

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@@ -661,6 +680,10 @@ namespace dr553 {
 }
 
 // dr554: na
+
+// dr555: na
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AaronBallman wrote:

Avoiding copying tests is a good idea, that just means we need to come up with different tests. ;-)

CWG466 is solely about cv-qualification and pseudo destructors. CWG555 is more about lookup issues and was resolved by P1131R2. We should be able to devise a different set of tests for both, unless I'm missing something?

https://github.com/llvm/llvm-project/pull/87909