{"ast_node_type":"other","tokens":[{"end":32,"kind":"keyword","start":0,"text":"//"}]}
        // Original negated expr
        CfgExpr::Invalid => CfgExpr::Not(Box::new(CfgExpr::Invalid)), // Original negated expr
        CfgExpr::Atom(atom) => CfgExpr::Not(Box::new(CfgExpr::Atom(atom.clone()))),