Update V8 to r5214 as required by WebKit r65072.

Change-Id: I387277a00cc0949597c0f69a8e4f2da60213c8f2
diff --git a/src/full-codegen.h b/src/full-codegen.h
index b056cee..6e2fecb 100644
--- a/src/full-codegen.h
+++ b/src/full-codegen.h
@@ -432,6 +432,7 @@
   void EmitRegExpConstructResult(ZoneList<Expression*>* arguments);
   void EmitSwapElements(ZoneList<Expression*>* arguments);
   void EmitGetFromCache(ZoneList<Expression*>* arguments);
+  void EmitIsRegExpEquivalent(ZoneList<Expression*>* arguments);
 
   // Platform-specific code for loading variables.
   void EmitVariableLoad(Variable* expr, Expression::Context context);