First implementation of allocation elimination in Hydrogen.

src/objects.cc

 // Copyright 2013 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
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@@ skipping 10631 matching lines @@
           PrintF(out, "{input=%d}", input_slot_index);
           break;
         }
 
         case Translation::LITERAL: {
           unsigned literal_index = iterator.Next();
           PrintF(out, "{literal_id=%u}", literal_index);
           break;
         }
 
-        case Translation::ARGUMENTS_OBJECT: {
+        case Translation::DUPLICATED_OBJECT: {
+          int object_index = iterator.Next();
+          PrintF(out, "{object_index=%d}", object_index);
+          break;
+        }
+
+        case Translation::ARGUMENTS_OBJECT:
+        case Translation::CAPTURED_OBJECT: {
           int args_length = iterator.Next();
           PrintF(out, "{length=%d}", args_length);
           break;
         }
       }
       PrintF(out, "\n");
     }
   }
 }
 
@@ skipping 5309 matching lines @@
 
 void PropertyCell::AddDependentCode(Handle<Code> code) {
   Handle<DependentCode> codes = DependentCode::Insert(
       Handle<DependentCode>(dependent_code()),
       DependentCode::kPropertyCellChangedGroup, code);
   if (*codes != dependent_code()) set_dependent_code(*codes);
 }
 
 
 } }  // namespace v8::internal