Turn some usages of NewArray with DeleteArray in the same scope into ScopedVector or SmartPointer.

src/debug.cc

 // 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 34 matching lines @@
 #include "log.h"
 
 #include "../include/v8-debug.h"
 
 namespace v8 {
 namespace internal {
 
 #ifdef ENABLE_DEBUGGER_SUPPORT
 static void PrintLn(v8::Local<v8::Value> value) {
   v8::Local<v8::String> s = value->ToString();
-  char* data = NewArray<char>(s->Length() + 1);
-  if (data == NULL) {
+  ScopedVector<char> data(s->Length() + 1);
+  if (data.start() == NULL) {
     V8::FatalProcessOutOfMemory("PrintLn");
     return;
   }
-  s->WriteAscii(data);
-  PrintF("%s\n", data);
-  DeleteArray(data);
+  s->WriteAscii(data.start());
+  PrintF("%s\n", data.start());
 }
 
 
 static Handle<Code> ComputeCallDebugBreak(int argc) {
   CALL_HEAP_FUNCTION(StubCache::ComputeCallDebugBreak(argc), Code);
 }
 
 
 static Handle<Code> ComputeCallDebugPrepareStepIn(int argc) {
   CALL_HEAP_FUNCTION(StubCache::ComputeCallDebugPrepareStepIn(argc), Code);
@@ skipping 2729 matching lines @@
     {
       Locker locker;
       Debugger::CallMessageDispatchHandler();
     }
   }
 }
 
 #endif  // ENABLE_DEBUGGER_SUPPORT
 
 } }  // namespace v8::internal