Fix issue 571: display descriptive names for code objects from snapshot.

src/flag-definitions.h

 // Copyright 2008 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 340 matching lines @@
 DEFINE_bool(log, false,
             "Minimal logging (no API, code, GC, suspect, or handles samples).")
 DEFINE_bool(log_all, false, "Log all events to the log file.")
 DEFINE_bool(log_runtime, false, "Activate runtime system %Log call.")
 DEFINE_bool(log_api, false, "Log API events to the log file.")
 DEFINE_bool(log_code, false,
             "Log code events to the log file without profiling.")
 DEFINE_bool(log_gc, false,
             "Log heap samples on garbage collection for the hp2ps tool.")
 DEFINE_bool(log_handles, false, "Log global handle events.")
+DEFINE_bool(log_snapshot_positions, false,
+            "log positions of (de)serialized objects in the snapshot.")
 DEFINE_bool(log_state_changes, false, "Log state changes.")
 DEFINE_bool(log_suspect, false, "Log suspect operations.")
 DEFINE_bool(log_producers, false, "Log stack traces of JS objects allocations.")
 DEFINE_bool(compress_log, false,
             "Compress log to save space (makes log less human-readable).")
 DEFINE_bool(prof, false,
             "Log statistical profiling information (implies --log-code).")
 DEFINE_bool(prof_auto, true,
             "Used with --prof, starts profiling automatically")
 DEFINE_bool(prof_lazy, false,
@@ skipping 41 matching lines @@
 #undef FLAG
 
 #undef DEFINE_bool
 #undef DEFINE_int
 #undef DEFINE_string
 
 #undef FLAG_MODE_DECLARE
 #undef FLAG_MODE_DEFINE
 #undef FLAG_MODE_DEFINE_DEFAULTS
 #undef FLAG_MODE_META