| 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 13de6b56eedd5b171d2e8ba2768a3ac6998b9e2e..294553e40a80fe69bb85e0db4ddb325eed406741 100644
 | 
| --- a/src/flag-definitions.h
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| +++ b/src/flag-definitions.h
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| @@ -572,6 +572,8 @@ DEFINE_bool(cleanup_code_caches_at_gc, true,
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|  DEFINE_bool(use_marking_progress_bar, true,
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|              "Use a progress bar to scan large objects in increments when "
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|              "incremental marking is active.")
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| +DEFINE_bool(zap_code_space, true,
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| +            "Zap free memory in code space with 0xCC while sweeping.")
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|  DEFINE_int(random_seed, 0,
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|             "Default seed for initializing random generator "
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|             "(0, the default, means to use system random).")
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| 
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