onig_region_free  168 ext/strscan/strscan.c     onig_region_free(&(p->regs), 0);
onig_region_free 1889 gc.c           	    onig_region_free(&rm->regs, 0);
onig_region_free  703 include/ruby/oniguruma.h void onig_region_free P_((OnigRegion* region, int free_self));
onig_region_free 1335 re.c           	    onig_region_free(regs, 0);
onig_region_free 1350 re.c           	onig_region_free(regs, 0);