[clang-tools-extra] [llvm] [Github][CI] Don't build analysis targets when no relevant projects present (PR #196882)

[via llvm-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/ClangTidy.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/ClangTidy.cpp:102:57: warning: invalid case style for parameter 'applyFixes' [readability-identifier-naming]
  102 |   ErrorReporter(ClangTidyContext &Context, FixBehaviour applyFixes,
      |                                                         ^~~~~~~~~~
      |                                                         ApplyFixes
  103 |                 llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS)
  104 |       : Files(FileSystemOptions(), std::move(BaseFS)),
  105 |         DiagPrinter(new TextDiagnosticPrinter(llvm::outs(), DiagOpts)),
  106 |         Diags(DiagnosticIDs::create(), DiagOpts, DiagPrinter),
  107 |         SourceMgr(Diags, Files), Context(Context), ApplyFixes(applyFixes) {
      |                                                               ~~~~~~~~~~
      |                                                               ApplyFixes
```

</details>


https://github.com/llvm/llvm-project/pull/196882