Fix tests in ansi
Fix tests in ansi

Switched to vendored Utf8Chars.

dannydulai/alacritty,jwilm/alacritty,jwilm/alacritty,alacritty/alacritty,dannydulai/alacritty,alacritty/alacritty,jwilm/alacritty,jwilm/alacritty