664686bdbc
## Summary IIUC, tuples with a known structure (`tuple_spec`) use the standard tuple `__eq__` which only returns `True` for other tuples, so they can be safely excluded when disjoint from string literals or other non-tuple types. Closes https://github.com/astral-sh/ty/issues/2140.
Markdown files within the mdtest/ subdirectory are tests of type inference and type checking;
executed by the tests/mdtest.rs integration test.
See crates/ty_test/README.md for documentation of this test format.