[clang] [clang][Sema] Suggest/Hint Standard Library Include File (PR #146227)

[Erich Keane via cfe-commits]

================
@@ -478,6 +478,7 @@ Improvements to Clang's diagnostics
   diagnostics. This fixes a bunch of `bool` being printed as `_Bool`, and also
   a bunch of HLSL types being printed as their C++ equivalents.
 - Clang now consistently quotes expressions in diagnostics.
+- Clang now suggest standard library include path and its associated C++ or C language version.
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erichkeane wrote:

```suggestion
- Clang now suggests including standard library headers when encountering standard types.
```

https://github.com/llvm/llvm-project/pull/146227