[clang-tools-extra] [clang-tidy] Make `modernize-use-using`'s fixits more robust (PR #149694)

[via cfe-commits]

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@@ -102,6 +102,10 @@ New check aliases
 Changes in existing checks
 ^^^^^^^^^^^^^^^^^^^^^^^^^^
 
+- Improved :doc:`modernize-use-using
+  <clang-tidy/checks/modernize/use-using>` check by removing many incorrect 
+  fixits and providing fixits where before there was only a warning.
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EugeneZelenko wrote:

```suggestion
  fix-its and providing fix-its where before there was only a warning.
```

https://github.com/llvm/llvm-project/pull/149694