[heap profiler] Use internal type links for bound this and target function.

src/profiler/heap-snapshot-generator.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 "src/profiler/heap-snapshot-generator.h"
 
 #include "src/code-stubs.h"
 #include "src/conversions.h"
 #include "src/debug/debug.h"
 #include "src/objects-body-descriptors.h"
@@ skipping 1071 matching lines @@
   ExtractPropertyReferences(js_obj, entry);
   ExtractElementReferences(js_obj, entry);
   ExtractInternalReferences(js_obj, entry);
   PrototypeIterator iter(heap_->isolate(), js_obj);
   SetPropertyReference(obj, entry, heap_->proto_string(), iter.GetCurrent());
   if (obj->IsJSBoundFunction()) {
     JSBoundFunction* js_fun = JSBoundFunction::cast(obj);
     TagObject(js_fun->bound_arguments(), "(bound arguments)");
     SetInternalReference(js_fun, entry, "bindings", js_fun->bound_arguments(),
                          JSBoundFunction::kBoundArgumentsOffset);
-    SetNativeBindReference(js_obj, entry, "bound_this", js_fun->bound_this());
-    SetNativeBindReference(js_obj, entry, "bound_function",
-                           js_fun->bound_target_function());
+    SetInternalReference(js_obj, entry, "bound_this", js_fun->bound_this(),
+                         JSBoundFunction::kBoundThisOffset);
+    SetInternalReference(js_obj, entry, "bound_function",
+                         js_fun->bound_target_function(),
+                         JSBoundFunction::kBoundTargetFunctionOffset);
     FixedArray* bindings = js_fun->bound_arguments();
     for (int i = 0; i < bindings->length(); i++) {
       const char* reference_name = names_->GetFormatted("bound_argument_%d", i);
       SetNativeBindReference(js_obj, entry, reference_name, bindings->get(i));
     }
   } else if (obj->IsJSFunction()) {
     JSFunction* js_fun = JSFunction::cast(js_obj);
     Object* proto_or_map = js_fun->prototype_or_initial_map();
     if (!proto_or_map->IsTheHole(heap_->isolate())) {
       if (!proto_or_map->IsMap()) {
@@ skipping 2003 matching lines @@
   for (int i = 1; i < sorted_strings.length(); ++i) {
     writer_->AddCharacter(',');
     SerializeString(sorted_strings[i]);
     if (writer_->aborted()) return;
   }
 }
 
 
 }  // namespace internal
 }  // namespace v8