5.031004
sv_2pvbyte_flags               # U
sv_2pvutf8_flags               # U
SvAMAGIC_off                   # U
SvAMAGIC_on                    # U
SvPVbyte_nomg                  # U
SvPVbyte_or_null               # U
SvPVbyte_or_null_nomg          # U
SvPVutf8_nomg                  # U
SvPVutf8_or_null               # U
SvPVutf8_or_null_nomg          # U
sv_utf8_downgrade_flags        # U
sv_utf8_downgrade_nomg         # U
