Move old multicol tests to a separate directory.

LayoutTests/StaleTestExpectations

Index: LayoutTests/StaleTestExpectations
diff --git a/LayoutTests/StaleTestExpectations b/LayoutTests/StaleTestExpectations
index 4d5a02c6f90132b90c18e8239c86e58b42e374ea..a1cee0ecd86bee5174e0863f2c5791e816929047 100644
--- a/LayoutTests/StaleTestExpectations
+++ b/LayoutTests/StaleTestExpectations
@@ -42,7 +42,7 @@ webkit.org/b/82297 [ Lion MountainLion Mavericks Retina ] fast/events/platform-w
 webkit.org/b/82297 [ Lion MountainLion Mavericks Retina ] fast/events/platform-wheelevent-paging-xy-in-scrolling-page.html [ WontFix ]
 webkit.org/b/82297 [ Lion MountainLion Mavericks Retina ] fast/events/platform-wheelevent-paging-y-in-scrolling-page.html [ WontFix ]
 webkit.org/b/ [ Win7 ] http/tests/xmlhttprequest/redirect-cross-origin-post.html [ WontFix ]
-webkit.org/b/83647 [ Linux Win ] fast/multicol/cell-shrinkback.html [ WontFix ]
+webkit.org/b/83647 [ Linux Win ] fast/multicol/old/cell-shrinkback.html [ WontFix ]
 
 # Fails since creation in 122663
 webkit.org/b/91372 [ Win ] css2.1/20110323/vertical-align-boxes-001.htm [ WontFix ]
@@ -104,7 +104,7 @@ crbug.com/108833 plugins/geturlnotify-during-document-teardown.html [ WontFix ]
 # This test sometimes fails indefinitely, other times it takes 1-2 seconds.
 crbug.com/14009 [ Win ] http/tests/misc/dns-prefetch-control.html [ WontFix ]
 
-crbug.com/250935 [ Win ] fast/multicol/shrink-to-column-height-for-pagination.html [ WontFix ]
+crbug.com/250935 [ Win ] fast/multicol/old/shrink-to-column-height-for-pagination.html [ WontFix ]
 
 # Unexpected gray
 crbug.com/23476 [ Mac ] fast/frames/inline-object-inside-frameset.html [ WontFix ]