Removing some dead flags.

src/flag-definitions.h

Index: src/flag-definitions.h
diff --git a/src/flag-definitions.h b/src/flag-definitions.h
index 07bd251673971ba85eaf08d5c2fefbd799187462..d1457397c53fc1c5d1c3f7ca83c6fce01c65183a 100644
--- a/src/flag-definitions.h
+++ b/src/flag-definitions.h
@@ -1,4 +1,4 @@
-// Copyright 2011 the V8 project authors. All rights reserved.
+// Copyright 2012 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:
@@ -118,14 +118,15 @@ DEFINE_implication(harmony, harmony_proxies)
 DEFINE_implication(harmony, harmony_collections)
 
 // Flags for experimental implementation features.
-DEFINE_bool(unbox_double_arrays, true, "automatically unbox arrays of doubles")
 DEFINE_bool(smi_only_arrays, false, "tracks arrays with only smi values")
-DEFINE_bool(string_slices, true, "use string slices")
-
 DEFINE_bool(clever_optimizations,
             true,
             "Optimize object size, Array shift, DOM strings and string +")
 
+// Flags for data representation optimizations

[Yang, 2012/01/30 10:54:41]

those are not actually "experimental" anymore.

+DEFINE_bool(unbox_double_arrays, true, "automatically unbox arrays of doubles")
+DEFINE_bool(string_slices, true, "use string slices")
+
 // Flags for Crankshaft.
 DEFINE_bool(crankshaft, true, "use crankshaft")
 DEFINE_string(hydrogen_filter, "", "hydrogen use/trace filter")
@@ -249,7 +250,7 @@ DEFINE_bool(enable_liveedit, true, "enable liveedit experimental feature")
 
 // execution.cc
 DEFINE_int(stack_size, kPointerSize * 128,
-           "default size of stack region v8 is allowed to use (in KkBytes)")
+           "default size of stack region v8 is allowed to use (in kBytes)")
 
 // frames.cc
 DEFINE_int(max_stack_trace_source_length, 300,
@@ -325,10 +326,6 @@ DEFINE_int(max_map_space_pages, MapSpace::kMaxMapPageIndex - 1,
            "forwarding pointers.  That's actually a constant, but it's useful "
            "to control it with a flag for better testing.")
 
-// mksnapshot.cc
-DEFINE_bool(h, false, "print this message")
-DEFINE_bool(new_snapshot, true, "use new snapshot implementation")

[Yang, 2012/01/30 10:54:41]

FLAG_h is never used and afaik there is no old snapshot implementation in use
anymore.

-
 // objects.cc
 DEFINE_bool(use_verbose_printer, true, "allows verbose printing")