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## Summary This is a re-creation of https://github.com/astral-sh/ruff/pull/16764 by @mtshiba, which I closed meaning to immediately reopen (GitHub wasn't updating the PR with the latest pushed changes), and which GitHub will not allow me to reopen for some reason. Pasting the summary from that PR below: > From https://github.com/astral-sh/ruff/pull/16641 > > As stated in this comment (https://github.com/astral-sh/ruff/pull/16641#discussion_r1996153702), the current ordering implementation for intersection types is incorrect. So, I will introduce lexicographic ordering for intersection types. ## Test Plan One property test stabilised (tested locally with `QUICKCHECK_TESTS=2000000 cargo test --release -p red_knot_python_semantic -- --ignored types::property_tests::stable::negation_reverses_subtype_order`), and existing mdtests that previously failed now pass. Primarily-authored-by: [mtshiba](https://github.com/astral-sh/ruff/commits?author=mtshiba) --------- Co-authored-by: Shunsuke Shibayama <sbym1346@gmail.com>
Markdown files within the mdtest/ subdirectory are tests of type inference and type checking;
executed by the tests/mdtest.rs integration test.
See crates/red_knot_test/README.md for documentation of this test format.