{"ast_node_type":"other","tokens":[{"end":62,"kind":"keyword","start":0,"text":"hir::ExprKind::AssignOp(_,"}]}
        hir::ExprKind::AssignOp(_, left_expr, right_expr) => {
        // trait resolution. Fortunately, we don't need to know the actual execution order.
            visitor.visit_expr(right_expr);