p |bool |io_close |IO* io|bool not_implicit
p |OP* |invert |OP* cmd
dp |bool |is_gv_magical |char *name|STRLEN len|U32 flags
-p |I32 |is_lvalue_sub
+Ap |I32 |is_lvalue_sub
+Ap |U32 |to_uni_upper_lc|U32 c
+Ap |U32 |to_uni_title_lc|U32 c
+Ap |U32 |to_uni_lower_lc|U32 c
Ap |bool |is_uni_alnum |UV c
Ap |bool |is_uni_alnumc |UV c
Ap |bool |is_uni_idfirst |UV c