29ac429c9b
Introduce `AliasKind::Inherent` for inherent associated types Allows us to check (possibly generic) inherent associated types for well-formedness. Type inference now also works properly. Follow-up to #105961. Supersedes #108430. Fixes #106722. Fixes #108957. Fixes #109768. Fixes #109789. Fixes #109790. ~Not to be merged before #108860 (`AliasKind::Weak`).~ CC `@jackh726` r? `@compiler-errors` `@rustbot` label T-types F-inherent_associated_types
For high-level intro to how type checking works in rustc, see the type checking chapter of the rustc dev guide.