Revert "No longer OOM on invalid string length."

This reverts r20202.

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/210143002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@20203 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Spec adjustments for well-known symbols

R=arv@chromium.org, mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/208423013

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@20204 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Merge remote-tracking branch 'upstream/bleeding_edge' into bleeding_edge