Chain ScopeInfos together

src/objects-inl.h

 // Copyright 2012 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.
 //
 // Review notes:
 //
 // - The use of macros in these inline functions may seem superfluous
 // but it is absolutely needed to make sure gcc generates optimal
 // code. gcc is not happy when attempting to inline too deep.
 //
@@ skipping 7909 matching lines @@
 #undef SCOPE_INFO_FIELD_ACCESSORS
 
 FixedArray* ModuleInfo::special_exports() const {
   return FixedArray::cast(get(kSpecialExportsIndex));
 }
 
 FixedArray* ModuleInfo::regular_exports() const {
   return FixedArray::cast(get(kRegularExportsIndex));
 }
 
+#ifdef DEBUG
+bool ModuleInfo::Equals(ModuleInfo* other) const {
+  return get(kSpecialExportsIndex) == other->get(kSpecialExportsIndex) &&
+         get(kRegularExportsIndex) == other->get(kRegularExportsIndex);
+}
+#endif
+
 void Map::ClearCodeCache(Heap* heap) {
   // No write barrier is needed since empty_fixed_array is not in new space.
   // Please note this function is used during marking:
   //  - MarkCompactCollector::MarkUnmarkedObject
   //  - IncrementalMarking::Step
   WRITE_FIELD(this, kCodeCacheOffset, heap->empty_fixed_array());
 }
 
 
 int Map::SlackForArraySize(int old_size, int size_limit) {
@@ skipping 315 matching lines @@
 #undef WRITE_INT64_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 #undef NOBARRIER_READ_BYTE_FIELD
 #undef NOBARRIER_WRITE_BYTE_FIELD
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_OBJECTS_INL_H_