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

src/objects-debug.cc

 // Copyright 2010 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:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 350 matching lines @@
 
 void Oddball::OddballVerify() {
   CHECK(IsOddball());
   VerifyHeapPointer(to_string());
   Object* number = to_number();
   if (number->IsHeapObject()) {
     ASSERT(number == Heap::nan_value());
   } else {
     ASSERT(number->IsSmi());
     int value = Smi::cast(number)->value();
-    ASSERT(value == 0 || value == 1 || value == -1 ||
-           value == -2 || value == -3);
+    // Hidden oddballs have negative smis.
+    const int kLeastHiddenOddballNumber = -4;
+    ASSERT(value <= 1);
+    ASSERT(value >= kLeastHiddenOddballNumber);
   }
 }
 
 
 void JSGlobalPropertyCell::JSGlobalPropertyCellVerify() {
   CHECK(IsJSGlobalPropertyCell());
   VerifyObjectField(kValueOffset);
 }
 
 
@@ skipping 312 matching lines @@
         ASSERT(e->IsUndefined());
       }
     }
   }
 }
 
 
 #endif  // DEBUG
 
 } }  // namespace v8::internal