| Index: src/flag-definitions.h
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| diff --git a/src/flag-definitions.h b/src/flag-definitions.h
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| index 4c74f6900692863226981f85a62e92d288511c92..09836448558f1711e2029784b9c9206138dd3c8b 100644
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| --- a/src/flag-definitions.h
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| +++ b/src/flag-definitions.h
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| @@ -158,6 +158,8 @@ DEFINE_implication(harmony_observation, harmony_collections)
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|  // Flags for experimental implementation features.
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|  DEFINE_bool(packed_arrays, true, "optimizes arrays that have no holes")
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|  DEFINE_bool(smi_only_arrays, true, "tracks arrays with only smi values")
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| +DEFINE_bool(compiled_transitions, false, "use optimizing compiler to "
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| +            "generate array elements transition stubs")
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|  DEFINE_bool(clever_optimizations,
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|              true,
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|              "Optimize object size, Array shift, DOM strings and string +")
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| 
 |