`depend_on_size` took a bare `WidgetId`, which any id at all satisfies.
It takes a `&StrongWidget` now, so `DrawResult` carries the handle it
was drawn from rather than an id copied out of it and nothing can claim
a dependency on a widget it does not hold.
`UiSpan::outside` matched on a pair of `Option`s where `?` says it. It
was written that way while the method was still `const`, and it is not.
No call site changed. Checked: fmt, clippy and 35 tests; `tabs`, `view`,
`minimal` and `text` render unchanged, and the live sway resize round
trip still matches a cold start at each size.
iris-ai
46547563c1