Revert "Changing string length field type from int to SMI."

This reverts svn commit 4556 from trunk.

Review URL: http://codereview.chromium.org/1857001

git-svn-id: http://v8.googlecode.com/svn/trunk@4563 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
15 files changed