position_start   1523 third_party/harfbuzz-ng/src/hb-ot-layout-gpos-table.hh   static inline void position_start (hb_font_t *font, hb_buffer_t *buffer);
position_start    722 third_party/harfbuzz-ng/src/hb-ot-layout.cc   OT::GPOS::position_start (font, buffer);