Clean up VMState a little bit.

src/flag-definitions.h

 // 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:
 //
 //     * 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 655 matching lines @@
 // runtime.cc
 DEFINE_bool(trace_lazy, false, "trace lazy compilation")
 
 // spaces.cc
 DEFINE_bool(collect_heap_spill_statistics, false,
             "report heap spill statistics along with heap_stats "
             "(requires heap_stats)")
 
 DEFINE_bool(trace_isolates, false, "trace isolate state changes")
 
-// VM state
-DEFINE_bool(log_state_changes, false, "Log state changes.")
-
 // Regexp
 DEFINE_bool(regexp_possessive_quantifier,
             false,
             "enable possessive quantifier syntax for testing")
 DEFINE_bool(trace_regexp_bytecodes, false, "trace regexp bytecode execution")
 DEFINE_bool(trace_regexp_assembler,
             false,
             "trace regexp macro assembler calls.")
 
 //
@@ skipping 27 matching lines @@
             "Used with --prof, turns on browser-compatible mode for profiling.")
 DEFINE_bool(log_regexp, false, "Log regular expression execution.")
 DEFINE_string(logfile, "v8.log", "Specify the name of the log file.")
 DEFINE_bool(ll_prof, false, "Enable low-level linux profiler.")
 DEFINE_string(gc_fake_mmap, "/tmp/__v8_gc__",
               "Specify the name of the file for fake gc mmap used in ll_prof")
 DEFINE_bool(log_internal_timer_events, false, "Time internal events.")
 DEFINE_bool(log_timer_events, false,
             "Time events including external callbacks.")
 DEFINE_implication(log_timer_events, log_internal_timer_events)
+DEFINE_implication(log_internal_timer_events, prof)
 
 //
 // Disassembler only flags
 //
 #undef FLAG
 #ifdef ENABLE_DISASSEMBLER
 #define FLAG FLAG_FULL
 #else
 #define FLAG FLAG_READONLY
 #endif
@@ skipping 41 matching lines @@
 #undef DEFINE_bool
 #undef DEFINE_int
 #undef DEFINE_string
 #undef DEFINE_implication
 
 #undef FLAG_MODE_DECLARE
 #undef FLAG_MODE_DEFINE
 #undef FLAG_MODE_DEFINE_DEFAULTS
 #undef FLAG_MODE_META
 #undef FLAG_MODE_DEFINE_IMPLICATIONS