-Es |bool|could_it_be_POSIX |NN struct RExC_state_t *pRExC_state
-Es |regnode*|handle_sets |NN struct RExC_state_t *pRExC_state \
- |NN I32 *flagp|U32 depth \
+Es |bool|could_it_be_a_POSIX_class|NN struct RExC_state_t *pRExC_state
+Es |regnode*|handle_regex_sets|NN struct RExC_state_t *pRExC_state \
+ |NULLOK SV ** return_invlist \
+ |NN I32 *flagp|U32 depth \