Rebaseline crash tests in fast/multicol/span with dumpAsText.

R=mstensho@opera.com
BUG=386567

Review URL: https://codereview.chromium.org/677063002

git-svn-id: svn://svn.chromium.org/blink/trunk@184475 bbb929c8-8fbe-4397-9dbb-9b2b20218538