[clang] [Clang](NFC) Add coverage for VTable debug info (PR #151818)

[Tomohiro Kashiwada via cfe-commits]

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@@ -0,0 +1,93 @@
+// The debug info of vtable is attached conditionally to whether
+// - Member functions are inlined or not
+// - Definition of destructor is visible or not
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kikairoya wrote:

Sure. I'll try it.

https://github.com/llvm/llvm-project/pull/151818