rb_f_trace_var    897 eval.c         VALUE rb_f_trace_var();
rb_f_trace_var   1062 eval.c             rb_define_global_function("trace_var", rb_f_trace_var, -1);	/* in variable.c */
rb_f_trace_var    731 include/ruby/intern.h VALUE rb_f_trace_var(int, VALUE*);