Skip test on win debug.

TBR=bmeurer@chromium.org
BUG=chromium:428315
LOG=n

Review URL: https://codereview.chromium.org/693473002

Cr-Commit-Position: refs/heads/master@{#25007}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25007 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

test/webkit/webkit.status

@@ -44,6 +44,7 @@
   'dfg-double-vote-fuzz': [SKIP],
   'reentrant-caching': [SKIP],
   'sort-large-array': [SKIP],
+  'array-iterate-backwards': [PASS, ['system == windows', NO_VARIANTS]],
 }],  # 'mode == debug'
 ['simulator', {
   # Skip tests that timeout with turbofan.