[Tests] more use of MODULE directive

tests/cil/change_to_instr.i

tests/cil/queue_ghost_instr.i

tests/misc/interpreted_automata_dataflow.i

tests/misc/pp_bin_hex.i

tests/misc/pp_int.i

tests/spec/Extend_recursive_preprocess.i

tests/syntax/ghost_cv_var_decl.c