[clang-tools-extra] [clang-tidy] Add `bugprone-unordered-equal-compare` check (PR #210555)

[via cfe-commits]

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@@ -97,6 +97,13 @@ Improvements to clang-tidy
 New checks
 ^^^^^^^^^^
 
+- New :doc:`bugprone-unordered-equal-compare
+  <clang-tidy/checks/bugprone/unordered-equal-compare>` check.
+
+  Flags uses of ``std::equal`` to compare the ranges of two unordered
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EugeneZelenko wrote:

Please synchronize with first statement in documentation.

https://github.com/llvm/llvm-project/pull/210555