[clang-tools-extra] [clang-tidy][readability-container-contains] Extend to any class with contains (PR #107521)

[via cfe-commits]

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@@ -116,7 +116,11 @@ Changes in existing checks
   <clang-tidy/checks/modernize/use-std-print>` check to support replacing
   member function calls too.
 
-- Improved :doc:`readablility-implicit-bool-conversion
+- Improved :doc:`readability-container-contains
+  <clang-tidy/checks/readability/container-contains>` check
+  to let it work on any class that has a `contains` method.
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EugeneZelenko wrote:

```suggestion
  to let it work on any class that has a ``contains`` method.
```

Language construct.

https://github.com/llvm/llvm-project/pull/107521