Merge V8 at 3.9.24.13

Bug: 5688872
Change-Id: Id0aa8d23375030494d3189c31774059c0f5398fc
diff --git a/src/v8memory.h b/src/v8memory.h
index 901e78d..f71de82 100644
--- a/src/v8memory.h
+++ b/src/v8memory.h
@@ -1,4 +1,4 @@
-// Copyright 2006-2008 the V8 project authors. All rights reserved.
+// Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
@@ -60,6 +60,10 @@
     return *reinterpret_cast<int*>(addr);
   }
 
+  static unsigned& unsigned_at(Address addr) {
+    return *reinterpret_cast<unsigned*>(addr);
+  }
+
   static double& double_at(Address addr)  {
     return *reinterpret_cast<double*>(addr);
   }