{"ast_node_type":"other","tokens":[{"end":54,"kind":"keyword","start":0,"text":"//"}]}
        // Find the closure that captured the binding.
        let Some(body_id) = tcx.hir_node(self.mir_hir_id()).body_id() else { return };
        let mut expr_finder = FindExprBySpan::new(args_span, tcx);