MarkMark         1397 third_party/harfbuzz-ng/src/hb-ot-layout-gpos-table.hh     case MarkMark:		return TRACE_RETURN (u.markMark.dispatch (c));
MarkMark         1415 third_party/harfbuzz-ng/src/hb-ot-layout-gpos-table.hh     case MarkMark:		return TRACE_RETURN (u.markMark.sanitize (c));