Rustup to rust-lang/rust#66936

clippy_lints/src/utils/usage.rs

@@ -6,7 +6,7 @@ use rustc_data_structures::fx::FxHashSet;
 use rustc_typeck::expr_use_visitor::*;
 
 /// Returns a set of mutated local variable IDs, or `None` if mutations could not be determined.
-pub fn mutated_variables<'a, 'tcx>(expr: &'tcx Expr, cx: &'a LateContext<'a, 'tcx>) -> Option<FxHashSet<HirId>> {
+pub fn mutated_variables<'a, 'tcx>(expr: &'tcx Expr<'_>, cx: &'a LateContext<'a, 'tcx>) -> Option<FxHashSet<HirId>> {
     let mut delegate = MutVarsDelegate {
         used_mutably: FxHashSet::default(),
         skip: false,
@@ -22,7 +22,11 @@ pub fn mutated_variables<'a, 'tcx>(expr: &'tcx Expr, cx: &'a LateContext<'a, 'tc
     Some(delegate.used_mutably)
 }
 
-pub fn is_potentially_mutated<'a, 'tcx>(variable: &'tcx Path, expr: &'tcx Expr, cx: &'a LateContext<'a, 'tcx>) -> bool {
+pub fn is_potentially_mutated<'a, 'tcx>(
+    variable: &'tcx Path,
+    expr: &'tcx Expr<'_>,
+    cx: &'a LateContext<'a, 'tcx>,
+) -> bool {
     if let Res::Local(id) = variable.res {
         mutated_variables(expr, cx).map_or(true, |mutated| mutated.contains(&id))
     } else {