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

src/assembler.cc

Index: src/assembler.cc
diff --git a/src/assembler.cc b/src/assembler.cc
index 6581aa1305a459fdc8c90b31d0a9faabf9f78169..093177b5f78e57604af350fc21b2ebc0a37da19f 100644
--- a/src/assembler.cc
+++ b/src/assembler.cc
@@ -1335,6 +1335,14 @@ ExternalReference ExternalReference::address_of_the_hole_nan() {
 }
 
 
+ExternalReference ExternalReference::record_object_allocation_function(
+  Isolate* isolate) {
+  return ExternalReference(
+      Redirect(isolate,
+               FUNCTION_ADDR(HeapProfiler::RecordObjectAllocationFromMasm)));
+}
+
+
 #ifndef V8_INTERPRETED_REGEXP
 
 ExternalReference ExternalReference::re_check_stack_guard_state(