[clang-tools-extra] [clang-tidy] add check to suggest replacement of nested std::min or std::max with initializer lists (PR #85572)

[Piotr Zegar via cfe-commits]

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+.. title:: clang-tidy - modernize-min-max-use-initializer-list
+
+modernize-min-max-use-initializer-list
+======================================
+
+Replaces nested ``std::min`` and ``std::max`` calls with an initializer list 
+where applicable.
+
+For instance, consider the following code:
+
+.. code-block:: cpp
+
+   int a = std::max(std::max(i, j), k);
+
+The check will transform the above code to:
+
+.. code-block:: cpp
+
+   int a = std::max({i, j, k});
+
+Performance Considerations
+==========================
+
+While this check simplifies the code and makes it more readable, it may cause 
+performance degradation for non-trivial types due to the need to copy objects 
+into the initializer list.
+
+To avoid this, it is recommended to use `std::ref` or `std::cref` for 
+non-trivial types:
+
+.. code-block:: cpp
+
+   std::string b = std::max({std::ref(i), std::ref(j), std::ref(k)});
+
+Options
+=======
+
+.. option:: IncludeStyle
+
+   A string specifying which include-style is used, `llvm` or `google`. Default
+   is `llvm`.
+
+.. option:: IgnoreNonTrivialTypes
+
+   A boolean specifying whether to ignore non-trivial types. Default is `true`.
+
+.. option:: IgnoreTrivialTypesOfSizeAbove
+
+   An integer specifying the size (in bytes) above which trivial types are 
+  ignored. Default is `32`.
----------------
PiotrZSL wrote:

use same indent, 2 spaces for options

https://github.com/llvm/llvm-project/pull/85572