Upgrade V8 to 5.1.281.57  DO NOT MERGE

FPIIM-449

Change-Id: Id981b686b4d587ac31697662eb98bb34be42ad90
(cherry picked from commit 3b9bc31999c9787eb726ecdbfd5796bfdec32a18)
diff --git a/test/mjsunit/regress/regress-220.js b/test/mjsunit/regress/regress-220.js
index 32c6471..cd38a47 100644
--- a/test/mjsunit/regress/regress-220.js
+++ b/test/mjsunit/regress/regress-220.js
@@ -25,6 +25,8 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+// Flags: --no-harmony-restrictive-declarations
+
 function foo(f) { eval(f); }
 
 // Ensure that compiling a declaration of a function does not crash.