kcppdirective_s : (cpp_directive inout * visitor_c_s) -> cpp_directive inout;
kdefineval_s : (define_val inout * visitor_c_s) -> define_val inout;
kstatementseq_s: (statement_sequencable inout * visitor_c_s) -> statement_sequencable inout;
kcppdirective_s : (cpp_directive inout * visitor_c_s) -> cpp_directive inout;
kdefineval_s : (define_val inout * visitor_c_s) -> define_val inout;
kstatementseq_s: (statement_sequencable inout * visitor_c_s) -> statement_sequencable inout;