[clang-tools-extra] [clang-tidy] Implement alphabetical order test (PR #166072)

[via cfe-commits]

================
@@ -0,0 +1,5 @@
+// RUN: %python %S/../../../clang-tidy/tool/clang-tidy-alphabetical-order-check.py -o %t.clang-tidy-checks-list.rst
----------------
EugeneZelenko wrote:

Should be called in CMake.

https://github.com/llvm/llvm-project/pull/166072