Function epaint::text::text_layout::replace_last_glyph_with_overflow_character

fn replace_last_glyph_with_overflow_character(
    fonts: &mut FontsImpl,
    job: &LayoutJob,
    row: &mut Row,
)

Trims the last glyphs in the row and replaces it with an overflow character (e.g. …).

Called before we have any Y coordinates.