Use EmbedderHeapTracer instead of object grouping when trace_embedder_heap flag is set

src/objects.h

 // Copyright 2015 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.
 
 #ifndef V8_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 
 #include "src/assert-scope.h"
@@ skipping 2273 matching lines @@
   // internal fields as well as the number of internal fields.
   static inline int GetHeaderSize(InstanceType instance_type);
   inline int GetHeaderSize();
 
   static inline int GetInternalFieldCount(Map* map);
   inline int GetInternalFieldCount();
   inline int GetInternalFieldOffset(int index);
   inline Object* GetInternalField(int index);
   inline void SetInternalField(int index, Object* value);
   inline void SetInternalField(int index, Smi* value);
+  bool WasConstructedFromApiFunction();
 
   void CollectOwnPropertyNames(KeyAccumulator* keys,
                                PropertyFilter filter = ALL_PROPERTIES);
 
   // Returns the number of properties on this object filtering out properties
   // with the specified attributes (ignoring interceptors).
   // TODO(jkummerow): Deprecated, only used by Object.observe.
   int NumberOfOwnElements(PropertyFilter filter);
   // Returns the number of elements on this object filtering out elements
   // with the specified attributes (ignoring interceptors).
@@ skipping 8613 matching lines @@
     }
     return value;
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_