This reduces code complexity and avoids unnecessary roundtripping
through `DisplayPoint`. Hopefully this doesn't cause behavior changes,
but has one known behavior improvement:
`clip_at_line_ends` logic caused `is_inside_word` to return false when
on a word at the end of the line. In vim mode, this caused
`select_all_matches` to not select words at the end of lines, and in
some cases crashes due to not finding any selections.
Closes#29823
Release Notes:
- N/A
96409965e4