## Summary Generalize the rich-comparison fallback code for binary operator inference. This gets rid of one `todo_type!(…)` and implements the last remaining failing case from https://github.com/astral-sh/ruff/issues/14200. closes https://github.com/astral-sh/ruff/issues/14200 ## Test Plan New Markdown tests.
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.