{"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"if"}]}
            if data_a.principal_def_id() == b_principal_def_id || b_principal_def_id.is_none() {
            let b_principal_def_id = data_b.principal_def_id();
                // Codegen takes advantage of the additional assumption, where if the