| 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 ccba5118a334a3f727f39e6b348c9081a849557f..fc9a1db4540703dd57d6fe8e4f58ae7053904f3b 100644
 | 
| --- a/src/flag-definitions.h
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| +++ b/src/flag-definitions.h
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| @@ -150,6 +150,7 @@ DEFINE_implication(harmony, harmony_collections)
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|  DEFINE_implication(harmony_modules, harmony_scoping)
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|  
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|  // Flags for experimental implementation features.
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| +DEFINE_bool(packed_arrays, false, "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(clever_optimizations,
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|              true,
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| 
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