Make visiting traits generic over the Interner

Author: eggyal

clippy_utils/src/mir/possible_borrower.rs

@@ -4,7 +4,7 @@ use rustc_data_structures::fx::FxHashMap;
 use rustc_index::bit_set::{BitSet, HybridBitSet};
 use rustc_lint::LateContext;
 use rustc_middle::mir::{self, visit::Visitor as _, Mutability};
-use rustc_middle::ty::{self, visit::ir::TypeVisitor};
+use rustc_middle::ty::{self, visit::ir::TypeVisitor, TyCtxt};
 use rustc_mir_dataflow::{impls::MaybeStorageLive, Analysis, ResultsCursor};
 use std::borrow::Cow;
 use std::ops::ControlFlow;
@@ -136,7 +136,7 @@ impl<'a, 'b, 'tcx> mir::visit::Visitor<'tcx> for PossibleBorrowerVisitor<'a, 'b,
 
 struct ContainsRegion;
 
-impl TypeVisitor<'_> for ContainsRegion {
+impl TypeVisitor<TyCtxt<'_>> for ContainsRegion {
     type BreakTy = ();
 
     fn visit_region(&mut self, _: ty::Region<'_>) -> ControlFlow<Self::BreakTy> {

clippy_utils/src/ty.rs

@@ -838,7 +838,7 @@ pub fn for_each_top_level_late_bound_region<B>(
         index: u32,
         f: F,
     }
-    impl<'tcx, B, F: FnMut(BoundRegion) -> ControlFlow<B>> TypeVisitor<'tcx> for V<F> {
+    impl<'tcx, B, F: FnMut(BoundRegion) -> ControlFlow<B>> TypeVisitor<TyCtxt<'tcx>> for V<F> {
         type BreakTy = B;
         fn visit_region(&mut self, r: Region<'tcx>) -> ControlFlow<Self::BreakTy> {
             if let RegionKind::ReLateBound(idx, bound) = r.kind() && idx.as_u32() == self.index {