pub fn split_render_cell(
cell: Option<&SplitDiffCell>,
content_width: usize,
lang_hint: &str,
context: &ViewContext,
) -> Vec<Line>pub fn split_render_cell(
cell: Option<&SplitDiffCell>,
content_width: usize,
lang_hint: &str,
context: &ViewContext,
) -> Vec<Line>