Auto merge of #111342 - Dylan-DPC:rollup-b5p6wzy, r=Dylan-DPC

Rollup of 7 pull requests

Successful merges:

 - #110297 (Make `(try_)subst_and_normalize_erasing_regions` take `EarlyBinder`)
 - #110827 (Fix lifetime suggestion for type aliases with objects in them)
 - #111022 (Use smaller ints for bitflags)
 - #111056 (Fix some suggestions where a `Box<T>` is expected.)
 - #111262 (Further normalize msvc-non-utf8-ouput)
 - #111265 (Make generics_of has_self on RPITITs delegate to the opaque)
 - #111323 (Give a more helpful error when running the rustc shim directly)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

Author: bors

clippy_lints/src/methods/unnecessary_to_owned.rs

@@ -385,6 +385,9 @@ fn can_change_type<'a>(cx: &LateContext<'a>, mut expr: &'a Expr<'a>, mut ty: Ty<
             Node::Expr(parent_expr) => {
                 if let Some((callee_def_id, call_substs, recv, call_args)) = get_callee_substs_and_args(cx, parent_expr)
                 {
+                    // FIXME: the `subst_identity()` below seems incorrect, since we eventually
+                    // call `tcx.try_subst_and_normalize_erasing_regions` further down
+                    // (i.e., we are explicitly not in the identity context).
                     let fn_sig = cx.tcx.fn_sig(callee_def_id).subst_identity().skip_binder();
                     if let Some(arg_index) = recv.into_iter().chain(call_args).position(|arg| arg.hir_id == expr.hir_id)
                         && let Some(param_ty) = fn_sig.inputs().get(arg_index)
@@ -435,7 +438,7 @@ fn can_change_type<'a>(cx: &LateContext<'a>, mut expr: &'a Expr<'a>, mut ty: Ty<
                         let output_ty = fn_sig.output();
                         if output_ty.contains(*param_ty) {
                             if let Ok(new_ty)  = cx.tcx.try_subst_and_normalize_erasing_regions(
-                                new_subst, cx.param_env, output_ty) {
+                                new_subst, cx.param_env, EarlyBinder(output_ty)) {
                                 expr = parent_expr;
                                 ty = new_ty;
                                 continue;