Fix overwriting order of object literal properties for MATERIALIZED_LITERALs

src/ast.cc

 // Copyright 2012 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 255 matching lines @@
 
   ZoneHashMap table(Literal::Match, ZoneHashMap::kDefaultHashMapCapacity,
                     allocator);
   for (int i = properties()->length() - 1; i >= 0; i--) {
     ObjectLiteral::Property* property = properties()->at(i);
     Literal* literal = property->key();
     if (literal->value()->IsNull()) continue;
     uint32_t hash = literal->Hash();
     // If the key of a computed property is in the table, do not emit
     // a store for the property later.
-    if (property->kind() == ObjectLiteral::Property::COMPUTED &&
+    if ((property->kind() == ObjectLiteral::Property::MATERIALIZED_LITERAL ||
+         property->kind() == ObjectLiteral::Property::COMPUTED) &&
         table.Lookup(literal, hash, false, allocator) != NULL) {
       property->set_emit_store(false);
     } else {
       // Add key to the table.
       table.Lookup(literal, hash, true, allocator);
     }
   }
 }
 
 
@@ skipping 902 matching lines @@
     OS::SNPrintF(buffer, "%d", Smi::cast(*value_)->value());
     str = arr;
   } else {
     str = DoubleToCString(value_->Number(), buffer);
   }
   return factory->NewStringFromAscii(CStrVector(str));
 }
 
 
 } }  // namespace v8::internal