Use a separate marker value to allocate the arguments object on deoptimzation...

src/heap.cc

Index: src/heap.cc
===================================================================
--- src/heap.cc	(revision 6199)
+++ src/heap.cc	(working copy)
@@ -2011,6 +2011,12 @@
   }
   set_the_hole_value(obj);
 
+  { MaybeObject* maybe_obj = CreateOddball("arguments_marker",
+                                           Smi::FromInt(-4));
+    if (!maybe_obj->ToObject(&obj)) return false;
+  }
+  set_arguments_marker(obj);
+
   { MaybeObject* maybe_obj =
         CreateOddball("no_interceptor_result_sentinel", Smi::FromInt(-2));
     if (!maybe_obj->ToObject(&obj)) return false;