[clang] [Clang] [Sema] Added a check for `NameInfo` actually containing a valid destructor name (PR #210610)

[Corentin Jabot via cfe-commits]

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@@ -180,3 +180,16 @@ namespace InstQualifier1 {
     };
   }
 } // namespace InstQualifier1
+
+namespace invalid_function_name_in_template_instantiation {
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cor3ntin wrote:

```suggestion
namespace GH210234 {
```

https://github.com/llvm/llvm-project/pull/210610