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 402 matching lines @@
   V(JS_MESSAGE_OBJECT_TYPE)                                     \
                                                                 \
   V(JS_VALUE_TYPE)                                              \
   V(JS_DATE_TYPE)                                               \
   V(JS_OBJECT_TYPE)                                             \
   V(JS_CONTEXT_EXTENSION_OBJECT_TYPE)                           \
   V(JS_GENERATOR_OBJECT_TYPE)                                   \
   V(JS_MODULE_TYPE)                                             \
   V(JS_GLOBAL_OBJECT_TYPE)                                      \
   V(JS_GLOBAL_PROXY_TYPE)                                       \
+  V(JS_API_OBJECT_TYPE)                                         \
   V(JS_SPECIAL_API_OBJECT_TYPE)                                 \
   V(JS_ARRAY_TYPE)                                              \
   V(JS_ARRAY_BUFFER_TYPE)                                       \
   V(JS_TYPED_ARRAY_TYPE)                                        \
   V(JS_DATA_VIEW_TYPE)                                          \
   V(JS_PROXY_TYPE)                                              \
   V(JS_SET_TYPE)                                                \
   V(JS_MAP_TYPE)                                                \
   V(JS_SET_ITERATOR_TYPE)                                       \
   V(JS_MAP_ITERATOR_TYPE)                                       \
@@ skipping 262 matching lines @@
   PROTOTYPE_INFO_TYPE,
   SLOPPY_BLOCK_WITH_EVAL_CONTEXT_EXTENSION_TYPE,
 
   // All the following types are subtypes of JSReceiver, which corresponds to
   // objects in the JS sense. The first and the last type in this range are
   // the two forms of function. This organization enables using the same
   // compares for checking the JS_RECEIVER and the NONCALLABLE_JS_OBJECT range.
   JS_PROXY_TYPE,          // FIRST_JS_RECEIVER_TYPE
   JS_GLOBAL_OBJECT_TYPE,  // FIRST_JS_OBJECT_TYPE
   JS_GLOBAL_PROXY_TYPE,
-  // Like JS_OBJECT_TYPE, but requires access checks and/or has interceptors.
+  // Like JS_API_OBJECT_TYPE, but requires access checks and/or has
+  // interceptors.
   JS_SPECIAL_API_OBJECT_TYPE,  // LAST_SPECIAL_RECEIVER_TYPE
   JS_VALUE_TYPE,               // LAST_CUSTOM_ELEMENTS_RECEIVER
   JS_MESSAGE_OBJECT_TYPE,
   JS_DATE_TYPE,
+  // Like JS_OBJECT_TYPE, but created from API function.
+  JS_API_OBJECT_TYPE,
   JS_OBJECT_TYPE,
   JS_CONTEXT_EXTENSION_OBJECT_TYPE,
   JS_GENERATOR_OBJECT_TYPE,
   JS_MODULE_TYPE,
   JS_ARRAY_TYPE,
   JS_ARRAY_BUFFER_TYPE,
   JS_TYPED_ARRAY_TYPE,
   JS_DATA_VIEW_TYPE,
   JS_SET_TYPE,
   JS_MAP_TYPE,
@@ skipping 35 matching lines @@
   LAST_JS_OBJECT_TYPE = LAST_TYPE,
   // Boundary for testing JSReceivers that need special property lookup handling
   LAST_SPECIAL_RECEIVER_TYPE = JS_SPECIAL_API_OBJECT_TYPE,
   // Boundary case for testing JSReceivers that may have elements while having
   // an empty fixed array as elements backing store. This is true for string
   // wrappers.
   LAST_CUSTOM_ELEMENTS_RECEIVER = JS_VALUE_TYPE,
 };
 
 STATIC_ASSERT(JS_OBJECT_TYPE == Internals::kJSObjectType);
+STATIC_ASSERT(JS_API_OBJECT_TYPE == Internals::kJSApiObjectType);
 STATIC_ASSERT(FIRST_NONSTRING_TYPE == Internals::kFirstNonstringType);
 STATIC_ASSERT(ODDBALL_TYPE == Internals::kOddballType);
 STATIC_ASSERT(FOREIGN_TYPE == Internals::kForeignType);
 
 
 std::ostream& operator<<(std::ostream& os, InstanceType instance_type);
 
 
 #define FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(V) \
   V(FAST_ELEMENTS_SUB_TYPE)                   \
@@ skipping 1502 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 8465 matching lines @@
     }
     return value;
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_