In the fuzz test the debugger is not actually loaded...

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/304453003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21491 ce2b1a6d-e550-0410-aec6-3dcde31c8c00