Fix debug print and wrong handle dereference in es6 typed array.

src/runtime.cc

 // Copyright 2012 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 688 matching lines @@
   {
     MaybeObject* maybe_byte_length =
         isolate->heap()->NumberFromDouble(
             static_cast<double>(allocated_length));
     if (!maybe_byte_length->ToObject(&byte_length)) return maybe_byte_length;
   }
   CHECK(byte_length->IsSmi() || byte_length->IsHeapNumber());
   holder->set_byte_length(byte_length);
 
   v8::Isolate* external_isolate = reinterpret_cast<v8::Isolate*>(isolate);
-  v8::Handle<Object> external_holder(*holder);
-  Persistent<Object> weak_handle = Persistent<Object>::New(
-      external_isolate, external_holder);
+  v8::Persistent<v8::Value> weak_handle = v8::Persistent<v8::Value>::New(
+      external_isolate, v8::Utils::ToLocal(Handle<Object>::cast(holder)));
   weak_handle.MakeWeak(external_isolate, data, ArrayBufferWeakCallback);
   weak_handle.MarkIndependent(external_isolate);
   isolate->heap()->AdjustAmountOfExternalAllocatedMemory(allocated_length);
 
   return *holder;
 }
 
 
 RUNTIME_FUNCTION(MaybeObject*, Runtime_ArrayBufferGetByteLength) {
   NoHandleAllocation ha(isolate);
   ASSERT(args.length() == 1);
   CONVERT_ARG_CHECKED(JSArrayBuffer, holder, 0);
   return holder->byte_length();
 }
 
 
 RUNTIME_FUNCTION(MaybeObject*, Runtime_ArrayBufferSliceImpl) {
   HandleScope scope(isolate);
   ASSERT(args.length() == 3);
   CONVERT_ARG_HANDLE_CHECKED(JSArrayBuffer, source, 0);
   CONVERT_ARG_HANDLE_CHECKED(JSArrayBuffer, target, 1);
   CONVERT_DOUBLE_ARG_CHECKED(first, 2);
   size_t start = static_cast<size_t>(first);
   size_t target_length = NumberToSize(isolate, target->byte_length());
 
-  if (target_length == 0)
-    return isolate->heap()->undefined_value();
+  if (target_length == 0) return isolate->heap()->undefined_value();
 
   ASSERT(NumberToSize(isolate, source->byte_length()) - target_length >= start);
   uint8_t* source_data = reinterpret_cast<uint8_t*>(source->backing_store());
   uint8_t* target_data = reinterpret_cast<uint8_t*>(target->backing_store());
   CopyBytes(target_data, source_data + start, target_length);
   return isolate->heap()->undefined_value();
 }
 
 
 enum TypedArrayId {
@@ skipping 12474 matching lines @@
     // Handle last resort GC and make sure to allow future allocations
     // to grow the heap without causing GCs (if possible).
     isolate->counters()->gc_last_resort_from_js()->Increment();
     isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags,
                                        "Runtime::PerformGC");
   }
 }
 
 
 } }  // namespace v8::internal