rb_iseqw_line_trace_each 2267 iseq.c             rb_iseqw_line_trace_each(iseqw, collect_trace, (void *)result);
rb_iseqw_line_trace_each 2326 iseq.c             rb_iseqw_line_trace_each(iseqval, line_trace_specify, (void *)&data);
rb_iseqw_line_trace_each  109 iseq.h         int rb_iseqw_line_trace_each(VALUE iseqval, int (*func)(int line, rb_event_flag_t *events_ptr, void *d), void *data);