Lookup transition again after migrating a transition target.
R=ulan@chromium.org
BUG=chromium:242332

Review URL: https://chromiumcodereview.appspot.com/16347005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@15031 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fix parallel recompilation wrt transition maps dependency.

R=ulan@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/15896038

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@15032 ce2b1a6d-e550-0410-aec6-3dcde31c8c00