Use less rustc_type_ir in the compiler codebase

This commit does the following:
  - Replaces use of rustc_type_ir by rustc_middle in rustc_infer.
  - The DelayedMap type is exposed by rustc_middle so everything can be
    accessed through rustc_middle in a coherent manner.
  - API-layer traits, like InferCtxtLike, Interner or inherent::* must be
    accessed via rustc_type_ir, not rustc_middle::ty. For this reason
    these are not reexported by rustc_middle::ty.
  - Replaces use of ty::Interner by rustc_type_ir::Interner in
    rustc_trait_selection

1 files changed, 1 insertions, 1 deletions

diff --git a/compiler/rustc_infer/src/traits/util.rs b/compiler/rustc_infer/src/traits/util.rs
index 66ed49fe326..6461fbe0d33 100644
--- a/compiler/rustc_infer/src/traits/util.rs
+++ b/compiler/rustc_infer/src/traits/util.rs
@@ -1,7 +1,7 @@
 use rustc_data_structures::fx::FxHashSet;
+pub use rustc_middle::ty::elaborate::*;
 use rustc_middle::ty::{self, TyCtxt};
 use rustc_span::{Ident, Span};
-pub use rustc_type_ir::elaborate::*;
 
 use crate::traits::{self, Obligation, ObligationCauseCode, PredicateObligation};