e4a6b24245
Normalize anon consts in new solver We don't do any of that `expand_abstract_consts` stuff so this isn't sufficient to make GCE work, but it does allow, e.g. `[(); 1]: Default`, to solve. r? `@BoxyUwU`
For high-level intro to how type checking works in rustc, see the type checking chapter of the rustc dev guide.