cclass_case_fold 4402 regparse.c     static int cclass_case_fold(Node** np, CClassNode* cc, CClassNode* asc_cc, ScanEnv* env);
cclass_case_fold 4423 regparse.c           r = cclass_case_fold(np, cc, cc, env);
cclass_case_fold 6211 regparse.c     	r = cclass_case_fold(np, cc, NCCLASS(asc_node), env);