[clang-tools-extra] [clang-tidy] Added check 'bugprone-function-visibility-change' (PR #140086)

[via cfe-commits]

================
@@ -124,6 +124,11 @@ New checks
   pointer and store it as class members without handle the copy and move
   constructors and the assignments.
 
+- New :doc:`bugprone-function-visibility-change
+  <clang-tidy/checks/bugprone/function-visibility-change>` check.
+
+  Check function visibility changes in subclasses.
----------------
EugeneZelenko wrote:

```suggestion
  Checks function visibility changes in subclasses.
```

https://github.com/llvm/llvm-project/pull/140086