Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/clang-tools-extra/docs/clang-tidy/checks/modernize-use-using.rst

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+.. title:: clang-tidy - modernize-use-using
+
+modernize-use-using
+===================
+
+The check converts the usage of ``typedef`` with ``using`` keyword.
+
+Before:
+
+.. code-block:: c++
+
+  typedef int variable;
+
+  class Class{};
+  typedef void (Class::* MyPtrType)() const;
+
+After:
+
+.. code-block:: c++
+
+  using variable = int;
+
+  class Class{};
+  using MyPtrType = void (Class::*)() const;
+
+This check requires using C++11 or higher to run.
+
+Options
+-------
+
+.. option:: IgnoreMacros
+
+   If set to non-zero, the check will not give warnings inside macros. Default
+   is `1`.