Fixed Linux build.

src/debug.h

 // Copyright 2006-2008 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 401 matching lines @@
   static Handle<Object> event_listener_data_;
   static bool debugger_active_;  // Are there any active debugger?
   static bool compiling_natives_;  // Are we compiling natives?
   static bool is_loading_debugger_;  // Are we loading the debugger?
   static DebugMessageThread* message_thread_;
   static v8::DebugMessageHandler message_handler_;
   static void* message_handler_data_;
   static v8::DebugHostDispatchHandler host_dispatch_handler_;
   static void* host_dispatch_handler_data_;
 
- friend class DebugMessageThread;
+  friend class DebugMessageThread;
 };
 
 
 // A Queue of Vector<uint16_t> objects.  A thread-safe version is
 // LockingMessageQueue, based on this class.
 class MessageQueue BASE_EMBEDDED {
  public:
   explicit MessageQueue(int size);
   ~MessageQueue();
   bool IsEmpty() const { return start_ == end_; }
@@ skipping 179 matching lines @@
   }
  private:
   Debug::AddressId id_;
   int reg_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_V8_DEBUG_H_