Revert "Correctly OOM in the CEntryStub after retries."

This reverts r20292 due to no-snapshot failures.

TBR=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/214413005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@20293 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Unify monomorphic and polymorphic cases in IC::PatchCache.

BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/171683007

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@20294 ce2b1a6d-e550-0410-aec6-3dcde31c8c00