fn glyphs_advance_by_index(
glyph_runs: &[Arc<GlyphStore>],
index: ByteIndex,
baseline_origin: PhysicalPoint<Au>,
justification_adjustment: Au,
) -> PhysicalPoint<Au>
fn glyphs_advance_by_index(
glyph_runs: &[Arc<GlyphStore>],
index: ByteIndex,
baseline_origin: PhysicalPoint<Au>,
justification_adjustment: Au,
) -> PhysicalPoint<Au>