Add an interface for an embedder to provide information about native

test/cctest/test-mark-compact.cc

Index: test/cctest/test-mark-compact.cc
diff --git a/test/cctest/test-mark-compact.cc b/test/cctest/test-mark-compact.cc
index 3e3175e7352d906b2a28d39901e108dc1cb6d8c5..54c12eb83aa3cfbb56a8827db9c6eff0ff62d544 100644
--- a/test/cctest/test-mark-compact.cc
+++ b/test/cctest/test-mark-compact.cc
@@ -339,8 +339,8 @@ TEST(ObjectGroups) {
   {
     Object** g1_objects[] = { g1s1.location(), g1s2.location() };
     Object** g2_objects[] = { g2s1.location(), g2s2.location() };
-    GlobalHandles::AddGroup(g1_objects, 2);
-    GlobalHandles::AddGroup(g2_objects, 2);
+    GlobalHandles::AddGroup(g1_objects, 2, NULL);
+    GlobalHandles::AddGroup(g2_objects, 2, NULL);
   }
   // Do a full GC
   Heap::CollectGarbage(OLD_POINTER_SPACE);
@@ -357,8 +357,8 @@ TEST(ObjectGroups) {
   {
     Object** g1_objects[] = { g1s1.location(), g1s2.location() };
     Object** g2_objects[] = { g2s1.location(), g2s2.location() };
-    GlobalHandles::AddGroup(g1_objects, 2);
-    GlobalHandles::AddGroup(g2_objects, 2);
+    GlobalHandles::AddGroup(g1_objects, 2, NULL);
+    GlobalHandles::AddGroup(g2_objects, 2, NULL);
   }
 
   Heap::CollectGarbage(OLD_POINTER_SPACE);