Shunsuke Shibayama e4384fc212 [ty] impl VarianceInferable for KnownInstanceType (#20924) ... ## Summary Derived from #20900 Implement `VarianceInferable` for `KnownInstanceType` (especially for `KnownInstanceType::TypeAliasType`). The variance of a type alias matches its value type. In normal usage, type aliases are expanded to value types, so the variance of a type alias can be obtained without implementing this. However, for example, if we want to display the variance when hovering over a type alias, we need to be able to obtain the variance of the type alias itself (cf. #20900). ## Test Plan I couldn't come up with a way to test this in mdtest, so I'm testing it in a test submodule at the end of `types.rs`. I also added a test to `mdtest/generics/pep695/variance.md`, but it passes without the changes in this PR.		2025-10-17 21:12:19 +02:00
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resources	[ty] impl VarianceInferable for KnownInstanceType (#20924)	2025-10-17 21:12:19 +02:00
src	[ty] impl VarianceInferable for KnownInstanceType (#20924)	2025-10-17 21:12:19 +02:00
tests	[ty] Limit shown import paths to at most 5 unless ty runs with -v (#20912)	2025-10-16 13:18:09 +02:00
build.rs
Cargo.toml	[ty] Avoid overcounting shared memory usage (#19773)	2025-08-06 15:32:02 -04:00
mdtest.py	[ty] Faster iteration on mdtests (#20465)	2025-09-18 10:48:52 +00:00
mdtest.py.lock