The fast/multicol/span/span-as-immediate-columns-child.html layout test is failing since r180364 (https://trac.webkit.org/changeset/r180364). This test fixes for unsplittable content being paginated by columns and it updates the expectations for MAC platform so we probably could update expected file here. The diff is the following: https://build.webkit.org/results/GTK%20Linux%2064-bit%20Release%20%28Tests%29/r180552%20%286443%29/fast/multicol/span/span-as-immediate-columns-child-pretty-diff.html
Baseline was updated in r282363.
<rdar://problem/83358298>