loop {
arg_root = match &arg_root.kind {
hir::ExprKind::AddrOf(hir::BorrowKind::Ref, _, expr) => expr,
- hir::ExprKind::MethodCall(method_name, _, call_args, _) => {
+ hir::ExprKind::MethodCall(method_name, call_args, _) => {
if call_args.len() == 1
&& (method_name.ident.name == sym::as_str || method_name.ident.name == sym!(as_ref))
&& {