svg/batik/paints/patternRegions-positioned-objects.svg fails on Windows.
Can you provide a screenshot please? Do you mean Safari Win or Chromium?
Created attachment 65220 [details] Screenshot Screenshot of the test in Safari on Windows. Pretty diff: http://build.webkit.org/results/Windows%20Release%20(Tests)/r65859%20(3059)/svg/batik/paints/patternRegions-positioned-objects-pretty-diff.html
The screenshot shows that your build still contains the overflow support, that has been dropped. Are you sure you're on trunk??
Created attachment 65231 [details] Correct screenshot Correct screenshot.
Patch on bug 53463 fixes the problem for all platforms. *** This bug has been marked as a duplicate of bug 53463 ***