support for "syntax cloned"

src/core/printer.ml

src/core/printer.mli

src/core/task.ml

src/driver/driver.ml

src/driver/driver_ast.ml

src/driver/driver_parser.mly

src/printer/alt_ergo.ml

src/printer/coq.ml

src/printer/gappa.ml

src/printer/simplify.ml

src/printer/smt.ml

src/printer/tptp.ml

src/printer/why3.ml

src/transform/eliminate_definition.ml

src/transform/encoding_decorate_mono.ml

src/transform/filter_trigger.ml