Added macros OBJECT_IMPLEMENTATION and FINAL_OBJECT_IMPLEMENTATION

lib/byte_array.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/bootstrap_natives.h"
 
 #include "vm/bigint_operations.h"
 #include "vm/exceptions.h"
 #include "vm/native_entry.h"
 #include "vm/object.h"
@@ skipping 101 matching lines @@
   uint64_t value;                                                              \
   ByteArray::Copy(&value, array, index.Value(), sizeof(uint64_t));             \
   Integer& result = Integer::Handle();                                         \
   UINT64_TO_INTEGER(value, result);                                            \
   return result.raw();
 
 
 #define INTEGER_TO_UINT64(integer, uint64)                                     \
   if (integer.IsBigint()) {                                                    \
     Bigint& bigint = Bigint::Handle();                                         \
-    bigint |= integer.raw();                                                   \
+    bigint ^= integer.raw();                                                   \
     ASSERT(BigintOperations::FitsIntoUint64(bigint));                          \
     value = BigintOperations::AbsToUint64(bigint);                             \
   } else {                                                                     \
     ASSERT(integer.IsMint() || integer.IsSmi());                               \
     value = integer.AsInt64Value();                                            \
   }                                                                            \
 
 
 #define SETTER_UINT64(ArrayT)                                                  \
   SETTER_ARGUMENTS(ArrayT, Integer, uint64_t);                                 \
@@ skipping 642 matching lines @@
 DEFINE_NATIVE_ENTRY(ExternalFloat64Array_getIndexed, 2) {
   GETTER(ExternalFloat64Array, Double, double);
 }
 
 
 DEFINE_NATIVE_ENTRY(ExternalFloat64Array_setIndexed, 3) {
   SETTER(ExternalFloat64Array, Double, value, double);
 }
 
 }  // namespace dart