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

src/serialize.cc

Index: src/serialize.cc
diff --git a/src/serialize.cc b/src/serialize.cc
index 746c926653d6a21aa8f1674f33c53ce0cf0196aa..a017ae0da6e7ca85ba573f80b7e8a811839e96a2 100644
--- a/src/serialize.cc
+++ b/src/serialize.cc
@@ -581,6 +581,14 @@ void ExternalReferenceTable::PopulateTable(Isolate* isolate) {
       UNCLASSIFIED,
       63,
       "Heap::allocation_sites_list_address()");
+  Add(ExternalReference::is_tracking_allocations_address(isolate).address(),
+      UNCLASSIFIED,
+      64,
+      "HeapProfiler::is_tracking_allocations_address");
+  Add(ExternalReference::record_object_allocation_function(isolate).address(),
+      UNCLASSIFIED,
+      65,
+      "HeapProfiler::RecordObjectAllocationFromMasm");
 
   // Add a small set of deopt entry addresses to encoder without generating the
   // deopt table code, which isn't possible at deserialization time.