Properly load transition target descriptor info

R=danno@chromium.org
BUG=chromium:282736

Review URL: https://chromiumcodereview.appspot.com/23431029

git-svn-id: https://v8.googlecode.com/svn/branches/3.19@16759 ce2b1a6d-e550-0410-aec6-3dcde31c8c00