Fix GC issue...

src/top.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 352 matching lines @@
     return Factory::empty_symbol();
   }
 }
 
 
 Local<StackTrace> Top::CaptureCurrentStackTrace(
     int frame_limit, StackTrace::StackTraceOptions options) {
   v8::HandleScope scope;
   // Ensure no negative values.
   int limit = Max(frame_limit, 0);
-  Handle<JSArray> stackTrace = Factory::NewJSArray(frame_limit);
-  FixedArray* frames = FixedArray::cast(stackTrace->elements());
+  Handle<JSArray> stack_trace = Factory::NewJSArray(frame_limit);
 
   Handle<String> column_key =  Factory::LookupAsciiSymbol("column");
   Handle<String> line_key =  Factory::LookupAsciiSymbol("lineNumber");
   Handle<String> script_key =  Factory::LookupAsciiSymbol("scriptName");
   Handle<String> function_key =  Factory::LookupAsciiSymbol("functionName");
   Handle<String> eval_key =  Factory::LookupAsciiSymbol("isEval");
   Handle<String> constructor_key =  Factory::LookupAsciiSymbol("isConstructor");
 
   StackTraceFrameIterator it;
   int frames_seen = 0;
@@ skipping 46 matching lines @@
           Factory::true_value() : Factory::false_value();
       SetProperty(stackFrame, eval_key, is_eval, NONE);
     }
 
     if (options & StackTrace::kIsConstructor) {
       Handle<Object> is_constructor = (frame->IsConstructor()) ?
           Factory::true_value() : Factory::false_value();
       SetProperty(stackFrame, constructor_key, is_constructor, NONE);
     }
 
-    frames->set(frames_seen, *stackFrame);
+    FixedArray::cast(stack_trace->elements())->set(frames_seen, *stackFrame);
     frames_seen++;
     it.Advance();
   }
 
-  stackTrace->set_length(Smi::FromInt(frames_seen));
-  return scope.Close(Utils::StackTraceToLocal(stackTrace));
+  stack_trace->set_length(Smi::FromInt(frames_seen));
+  return scope.Close(Utils::StackTraceToLocal(stack_trace));
 }
 
 
 void Top::PrintStack() {
   if (stack_trace_nesting_level == 0) {
     stack_trace_nesting_level++;
 
     StringAllocator* allocator;
     if (preallocated_message_space == NULL) {
       allocator = new HeapStringAllocator();
@@ skipping 602 matching lines @@
   Top::break_access_->Lock();
 }
 
 
 ExecutionAccess::~ExecutionAccess() {
   Top::break_access_->Unlock();
 }
 
 
 } }  // namespace v8::internal