rb_iseq_new_top   615 load.c         	    iseq = rb_iseq_new_top(node, rb_str_new2("<top (required)>"), fname, rb_realpath_internal(Qnil, fname, 1), NULL);
rb_iseq_new_top   896 vm.c           	iseq = rb_iseq_new_top(node, tempstr, tempstr, tempstr, NULL);
rb_iseq_new_top   818 vm_core.h      rb_iseq_t *rb_iseq_new_top(NODE *node, VALUE name, VALUE path, VALUE absolute_path, const rb_iseq_t *parent);