Reland Just visit young array buffers during scavenge.

src/objects.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <iomanip>
 #include <sstream>
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
@@ skipping 16974 matching lines @@
   Runtime::SetupArrayBufferAllocatingData(isolate, buffer,
       fixed_typed_array->DataSize(), false);
   memcpy(buffer->backing_store(),
          fixed_typed_array->DataPtr(),
          fixed_typed_array->DataSize());
   Handle<ExternalArray> new_elements =
       isolate->factory()->NewExternalArray(
           fixed_typed_array->length(), typed_array->type(),
           static_cast<uint8_t*>(buffer->backing_store()));
 
-  buffer->set_weak_first_view(*typed_array);
-  DCHECK(typed_array->weak_next() == isolate->heap()->undefined_value());
+  Heap* heap = isolate->heap();
+  if (heap->InNewSpace(*typed_array)) {
+    DCHECK(typed_array->weak_next() == isolate->heap()->undefined_value());
+    typed_array->set_weak_next(heap->new_array_buffer_views_list());
+    heap->set_new_array_buffer_views_list(*typed_array);
+  } else {
+    buffer->set_weak_first_view(*typed_array);
+    DCHECK(typed_array->weak_next() == isolate->heap()->undefined_value());
+  }
   typed_array->set_buffer(*buffer);
   JSObject::SetMapAndElements(typed_array, new_map, new_elements);
 
   return buffer;
 }
 
 
 Handle<JSArrayBuffer> JSTypedArray::GetBuffer() {
   Handle<Object> result(buffer(), GetIsolate());
   if (*result != Smi::FromInt(0)) {
@@ skipping 63 matching lines @@
                                                CompilationInfo* info) {
   Handle<DependentCode> codes = DependentCode::InsertCompilationInfo(
       handle(cell->dependent_code(), info->isolate()),
       DependentCode::kPropertyCellChangedGroup, info->object_wrapper());
   if (*codes != cell->dependent_code()) cell->set_dependent_code(*codes);
   info->dependencies(DependentCode::kPropertyCellChangedGroup)->Add(
       cell, info->zone());
 }
 
 } }  // namespace v8::internal