Make EvictFromOptimizedCodeMap more robust.

This removes all occurences of the specified optimized code from the optimized
code map.

R=titzer@chromium.org, yangguo@chromium.org

Review URL: https://codereview.chromium.org/181493004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@19638 ce2b1a6d-e550-0410-aec6-3dcde31c8c00