fn prepare_outline_glyph<'a>(
glyph: Glyph,
size: Size,
initial_transform: Affine,
run_transform: Affine,
path: &'a mut OutlinePath,
outline_glyph: &OutlineGlyph<'a>,
hinting_instance: Option<&HintingInstance>,
normalized_coords: &[NormalizedCoord],
) -> (GlyphType<'a>, Affine)