Fix mjsunit/compiler/concurrent-invalidate-transition-map.js test.

BUG=v8:3156
LOG=N
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/180053003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@20009 ce2b1a6d-e550-0410-aec6-3dcde31c8c00