rb_name_err_mesg_new 1228 error.c            rb_ivar_set(exc, id_mesg, rb_name_err_mesg_new(mesg, recv, method));
rb_name_err_mesg_new 1057 vm_core.h      VALUE rb_name_err_mesg_new(VALUE mesg, VALUE recv, VALUE method);
rb_name_err_mesg_new  694 vm_eval.c          args[n++] = rb_name_err_mesg_new(format, obj, argv[0]);