Fix buffer overflow in liveedit....

src/liveedit.cc

 // Copyright 2010 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 970 matching lines @@
 
     DeleteArray(buffer_);
     buffer_ = new_buffer;
     buffer_size_ = new_buffer_size;
   }
 
   RelocInfoWriter reloc_info_writer_;
   byte* buffer_;
   int buffer_size_;
 
-  static const int kBufferGap = 8;
+  static const int kBufferGap = RelocInfoWriter::kMaxSize;
   static const int kMaximalBufferSize = 512*MB;
 };
 
 // Patch positions in code (changes relocation info section) and possibly
 // returns new instance of code.
 static Handle<Code> PatchPositionsInCode(Handle<Code> code,
     Handle<JSArray> position_change_array) {
 
   RelocInfoBuffer buffer_writer(code->relocation_size(),
                                 code->instruction_start());
@@ skipping 457 matching lines @@
 
 bool LiveEditFunctionTracker::IsActive() {
   return false;
 }
 
 #endif  // ENABLE_DEBUGGER_SUPPORT
 
 
 
 } }  // namespace v8::internal