Perl_is_uni_xdigit_lc
Perl_is_utf8_char
Perl_is_utf8_string
+Perl_is_utf8_string_loc
Perl_is_utf8_alnum
Perl_is_utf8_alnumc
Perl_is_utf8_idfirst
Perl_sv_nolocking
Perl_sv_nounlocking
Perl_nothreadhook
+Perl_Slab_Alloc
+Perl_Slab_Free
Perl_sv_setsv_flags
Perl_sv_catpvn_flags
Perl_sv_catsv_flags