[clang-tools-extra] DO NOT MERGE, demonstration of clang-tidy CI (PR #182702)

[via cfe-commits]

github-actions[bot] wrote:

<!--LLVM CODE LINT COMMENT: clang-tidy-->


:warning: C/C++ code linter, clang-tidy found issues in your code. :warning:

<details>
<summary>
You can test this locally with the following command:
</summary>

```bash

git diff -U0 origin/main...HEAD -- clang-tools-extra/clang-tidy/tool/ClangTidyMain.cpp |
python3 clang-tools-extra/clang-tidy/tool/clang-tidy-diff.py   -path build -p1 -quiet
```

</details>

<details>
<summary>
View the output from clang-tidy here.
</summary>

```
clang-tools-extra/clang-tidy/tool/ClangTidyMain.cpp:568:8: warning: invalid case style for variable 'anyInvalid' [readability-identifier-naming]
  568 |   bool anyInvalid = false;
      |        ^~~~~~~~~~
      |        AnyInvalid
  569 |   for (auto Key : OptionMap.keys()) {
  570 |     if (ValidOptions.contains(Key))
  571 |       continue;
  572 |     anyInvalid = true;
      |     ~~~~~~~~~~
      |     AnyInvalid
  573 |     auto &Output = llvm::WithColor::warning(llvm::errs(), Source)
  574 |                    << "unknown check option '" << Key << '\'';
  575 |     const llvm::StringRef Closest = closest(Key, ValidOptions);
  576 |     if (!Closest.empty())
  577 |       Output << "; did you mean '" << Closest << '\'';
  578 |     Output << VerifyConfigWarningEnd;
  579 |   }
  580 |   return anyInvalid;
      |          ~~~~~~~~~~
      |          AnyInvalid
```

</details>


https://github.com/llvm/llvm-project/pull/182702