Track JS allocations as they arrive with no affection on performance when tracking is switched off

test/cctest/test-heap.cc

Index: test/cctest/test-heap.cc
diff --git a/test/cctest/test-heap.cc b/test/cctest/test-heap.cc
index 2824d5b242465f2784656c386938750df435ac67..4f97662b44afe3225c553fb2de5ce0dc2bfac65e 100644
--- a/test/cctest/test-heap.cc
+++ b/test/cctest/test-heap.cc
@@ -3229,6 +3229,8 @@ TEST(Regress169928) {
   Factory* factory = isolate->factory();
   v8::HandleScope scope(CcTest::isolate());
 
+  HeapObjectsTracker tracker;
+
   // Some flags turn Scavenge collections into Mark-sweep collections
   // and hence are incompatible with this test case.
   if (FLAG_gc_global || FLAG_stress_compaction) return;