layout: float sizing fixes

Turns out our shrink-to-fit emulation was inadequate: it assumed all
floats are positioned on a separate line, which is the *opposite* of
what we want, as that would be the behavior of min-content.

Now we instead sum together the width of all floats and the widest
non-floating child, and then clamp that to the target fitContent width.
This correctly gives us max-content width in the first pass, still
without having to actually position the floats.

0 files changed, 0 insertions, 0 deletions