[clang-tools-extra] [clang-tidy][libc] Ignore implicit function inline (PR #71095)

[Piotr Zegar via cfe-commits]

================
@@ -79,6 +79,10 @@ void InlineFunctionDeclCheck::check(const MatchFinder::MatchResult &Result) {
     if (MethodDecl->getParent()->isLambda())
       return;
 
+  // Ignore implicit functions (e.g. implicit constructors or destructors)
+  if (FuncDecl->isImplicit())
----------------
PiotrZSL wrote:

Instead using isImplicit better just add:
```
 std::optional<TraversalKind> getCheckTraversalKind() const override {
      return TK_IgnoreUnlessSpelledInSource;
  }
```
to a header file of this check.

https://github.com/llvm/llvm-project/pull/71095