Fix lint errors and compile erors on Linux.

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 241 matching lines @@
   static Code** debug_break_return_address() {
     return &debug_break_return_;
   }
 
   static const int kEstimatedNofDebugInfoEntries = 16;
   static const int kEstimatedNofBreakPointsInFunction = 16;
 
   static void HandleWeakDebugInfo(v8::Persistent<v8::Value> obj, void* data);
 
   friend class Debugger;
-  friend Handle<FixedArray> GetDebuggedFunctions();  // Found in test-debug.cc
-  friend void CheckDebuggerUnloaded(bool);  // Found in test-debug.cc
+  friend Handle<FixedArray> GetDebuggedFunctions();  // In test-debug.cc
+  friend void CheckDebuggerUnloaded(bool check_functions);  // In test-debug.cc
 
   // Threading support.
   static char* ArchiveDebug(char* to);
   static char* RestoreDebug(char* from);
   static int ArchiveSpacePerThread();
 
   // Mirror cache handling.
   static void ClearMirrorCache();
 
   // Code generation assumptions.
@@ skipping 330 matching lines @@
   }
  private:
   Debug::AddressId id_;
   int reg_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_V8_DEBUG_H_