corrections for stateless nodes

dune-project

src/backends/C/c_backend.ml

src/backends/C/c_backend_common.ml

src/backends/C/c_backend_header.ml

src/backends/C/c_backend_spec.ml

src/backends/C/c_backend_src.ml

src/backends/Horn/horn_backend_traces.ml

src/clock_calculus.ml

src/lustre_live.ml

src/machine_code.ml

src/machine_code_common.mli

src/main_lustre_testgen.ml

src/typing.ml