Track live instance and allocation counts for classes

runtime/vm/object.cc

Index: runtime/vm/object.cc
diff --git a/runtime/vm/object.cc b/runtime/vm/object.cc
index 01c76904e73acdc67bd65bd24bd03f0b4adf32fa..0ec3e1bd643193b9566f81be591f76e6bd845776 100644
--- a/runtime/vm/object.cc
+++ b/runtime/vm/object.cc
@@ -1459,6 +1459,11 @@ RawObject* Object::Allocate(intptr_t cls_id,
     Exceptions::Throw(exception);
     UNREACHABLE();
   }
+  if (space == Heap::kNew) {
+    isolate->class_table()->ReportAllocationNew(cls_id, size);
+  } else {
+    isolate->class_table()->ReportAllocationOld(cls_id, size);
+  }
   NoGCScope no_gc;
   InitializeObject(address, cls_id, size);
   RawObject* raw_obj = reinterpret_cast<RawObject*>(address + kHeapObjectTag);