[clang-tools-extra] [clang-tidy] Fix performance-trivially-destructible with C++20 modules (PR #178471)

[Victor Chernyakin via cfe-commits]

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@@ -0,0 +1,61 @@
+// RUN: rm -rf %t
+// RUN: mkdir -p %t
+// RUN: split-file %s %t
+// RUN: %clang -std=c++20 -x c++-module --precompile %t/mymodule.cppm -o %t/mymodule.pcm -I%t
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localspook wrote:

Nit: I think clang can infer this is a module from the `.cppm` extension:
```suggestion
// RUN: %clang -std=c++20 --precompile %t/mymodule.cppm -o %t/mymodule.pcm -I%t
```

https://github.com/llvm/llvm-project/pull/178471