Auto merge of #116951 - compiler-errors:ir-file-structure, r=jackh726

Restructure `rustc_type_ir` a bit

1. Split `sty` into new `ty_kind`/`region_kind`/`const_kind` modules, so that when we uplift more kinds (e.g. `PredicateKind`, `ClauseKind`, and `ExistentialPredicate`), they can live in their own simple-to-understand files.
2. Split up the `structural_impls` module, which is a kitchen sink of random impls -- move `TypeFoldable` and `TypeVisitable` impls into existing `fold` and `visit` modules, respectively.
3. Move the `DebugWithInfcx` trait and blanket impls into a new `debug` module, and `TypeFlags` definition into a new `flags` module.
5. Move `Interner` trait into a new `interner` module. I expect this file to get a lot larger as we make the interner more powerful for the trait solver refactor.

r? `@ghost` for now, will assign once #116946 lands

1 files changed, 1 insertions, 1 deletions

diff --git a/compiler/rustc_lint/src/foreign_modules.rs b/compiler/rustc_lint/src/foreign_modules.rs
index e1df69bdaf2..b81e84fafac 100644
--- a/compiler/rustc_lint/src/foreign_modules.rs
+++ b/compiler/rustc_lint/src/foreign_modules.rs
@@ -262,7 +262,7 @@ fn structurally_same_type_impl<'tcx>(
         true
     } else {
         // Do a full, depth-first comparison between the two.
-        use rustc_type_ir::sty::TyKind::*;
+        use rustc_type_ir::TyKind::*;
         let a_kind = a.kind();
         let b_kind = b.kind();