Remove region from adjustments

compiler/rustc_middle/src/ty/adjustment.rs

@@ -82,7 +82,7 @@ pub enum PointerCoercion {
 ///    `Box<[i32]>` is an `Adjust::Unsize` with the target `Box<[i32]>`.
 #[derive(Clone, TyEncodable, TyDecodable, HashStable, TypeFoldable, TypeVisitable)]
 pub struct Adjustment<'tcx> {
-    pub kind: Adjust<'tcx>,
+    pub kind: Adjust,
     pub target: Ty<'tcx>,
 }
 
@@ -93,20 +93,20 @@ impl<'tcx> Adjustment<'tcx> {
 }
 
 #[derive(Clone, Debug, TyEncodable, TyDecodable, HashStable, TypeFoldable, TypeVisitable)]
-pub enum Adjust<'tcx> {
+pub enum Adjust {
     /// Go from ! to any type.
     NeverToAny,
 
     /// Dereference once, producing a place.
-    Deref(Option<OverloadedDeref<'tcx>>),
+    Deref(Option<OverloadedDeref>),
 
     /// Take the address and produce either a `&` or `*` pointer.
-    Borrow(AutoBorrow<'tcx>),
+    Borrow(AutoBorrow),
 
     Pointer(PointerCoercion),
 
     /// Take a pinned reference and reborrow as a `Pin<&mut T>` or `Pin<&T>`.
-    ReborrowPin(ty::Region<'tcx>, hir::Mutability),
+    ReborrowPin(hir::Mutability),
 }
 
 /// An overloaded autoderef step, representing a `Deref(Mut)::deref(_mut)`
@@ -115,17 +115,16 @@ pub enum Adjust<'tcx> {
 /// being those shared by both the receiver and the returned reference.
 #[derive(Copy, Clone, PartialEq, Debug, TyEncodable, TyDecodable, HashStable)]
 #[derive(TypeFoldable, TypeVisitable)]
-pub struct OverloadedDeref<'tcx> {
-    pub region: ty::Region<'tcx>,
+pub struct OverloadedDeref {
     pub mutbl: hir::Mutability,
     /// The `Span` associated with the field access or method call
     /// that triggered this overloaded deref.
     pub span: Span,
 }
 
-impl<'tcx> OverloadedDeref<'tcx> {
+impl OverloadedDeref {
     /// Get the zst function item type for this method call.
-    pub fn method_call(&self, tcx: TyCtxt<'tcx>, source: Ty<'tcx>) -> Ty<'tcx> {
+    pub fn method_call<'tcx>(&self, tcx: TyCtxt<'tcx>, source: Ty<'tcx>) -> Ty<'tcx> {
         let trait_def_id = match self.mutbl {
             hir::Mutability::Not => tcx.require_lang_item(LangItem::Deref, None),
             hir::Mutability::Mut => tcx.require_lang_item(LangItem::DerefMut, None),
@@ -187,9 +186,9 @@ impl From<AutoBorrowMutability> for hir::Mutability {
 
 #[derive(Copy, Clone, PartialEq, Debug, TyEncodable, TyDecodable, HashStable)]
 #[derive(TypeFoldable, TypeVisitable)]
-pub enum AutoBorrow<'tcx> {
+pub enum AutoBorrow {
     /// Converts from T to &T.
-    Ref(ty::Region<'tcx>, AutoBorrowMutability),
+    Ref(AutoBorrowMutability),
 
     /// Converts from T to *T.
     RawPtr(hir::Mutability),