[clang-tools-extra] [clang-tidy] detect redundant uses of LLVM's cast, dyn_cast (PR #189274)

[Zeyi Xu via cfe-commits]

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@@ -0,0 +1,24 @@
+.. title:: clang-tidy - llvm-redundant-casting
+
+llvm-redundant-casting
+======================
+
+Points out uses of ``cast<>``, ``dyn_cast<>`` and their ``or_null`` variants
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zeyi2 wrote:

Nit: Could we add the full list of supported functions at the end of the documentation?

https://github.com/llvm/llvm-project/pull/189274