Make the Isolate parameter mandatory for internal HandleScopes.

src/log.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 292 matching lines @@
     Isolate* isolate_;
     const char* name_;
   };
 
   // ==== Events logged by --log-regexp ====
   // Regexp compilation and execution events.
 
   void RegExpCompileEvent(Handle<JSRegExp> regexp, bool in_cache);
 
   // Log an event reported from generated code
-  void LogRuntime(Vector<const char> format, JSArray* args);
+  void LogRuntime(Isolate* isolate, Vector<const char> format, JSArray* args);
 
   bool is_logging() {
     return logging_nesting_ > 0;
   }
 
   bool is_logging_code_events() {
     return is_logging() || code_event_handler_ != NULL;
   }
 
   // Pause/Resume collection of profiling data.
@@ skipping 24 matching lines @@
   static const int kSamplingIntervalMs = 1;
 #endif
 
   // Callback from Log, stops profiling in case of insufficient resources.
   void LogFailure();
 
  private:
   class NameBuffer;
   class NameMap;
 
-  Logger();
+  explicit Logger(Isolate* isolate);
   ~Logger();
 
   // Issue code notifications.
   void IssueCodeAddedEvent(Code* code, const char* name, size_t name_len);
   void IssueCodeMovedEvent(Address from, Address to);
   void IssueCodeRemovedEvent(Address from);
 
   // Emits the profiler's first message.
   void ProfilerBeginEvent();
 
@@ skipping 46 matching lines @@
   // Logs a StringEvent regardless of whether FLAG_log is true.
   void UncheckedStringEvent(const char* name, const char* value);
 
   // Logs an IntEvent regardless of whether FLAG_log is true.
   void UncheckedIntEvent(const char* name, int value);
   void UncheckedIntPtrTEvent(const char* name, intptr_t value);
 
   // Returns whether profiler's sampler is active.
   bool IsProfilerSamplerActive();
 
+  Isolate* isolate_;
+
   // The sampler used by the profiler and the sliding state window.
   Ticker* ticker_;
 
   // When the statistical profile is active, profiler_
   // points to a Profiler, that handles collection
   // of samples.
   Profiler* profiler_;
 
   // An array of log events names.
   const char* const* log_events_;
@@ skipping 81 matching lines @@
 // Class that extracts stack trace, used for profiling.
 class StackTracer : public AllStatic {
  public:
   static void Trace(Isolate* isolate, TickSample* sample);
 };
 
 } }  // namespace v8::internal
 
 
 #endif  // V8_LOG_H_