Correctly setup exit frame when calling into allocation tracker

src/allocation-tracker.cc

Index: src/allocation-tracker.cc
diff --git a/src/allocation-tracker.cc b/src/allocation-tracker.cc
index 586ce3c45a8442420fd293e862b676e220f50bff..aba8274ee7c9093259e6d05732fc3211edad2ca3 100644
--- a/src/allocation-tracker.cc
+++ b/src/allocation-tracker.cc
@@ -181,7 +181,9 @@ void AllocationTracker::NewObjectEvent(Address addr, int size) {
 
   Isolate* isolate = heap->isolate();
   int length = 0;
-  StackTraceFrameIterator it(isolate);
+  // The allocation may well happen inside a builtin so it is OK for the
+  // iterator to see builtins on the call stack.
+  StackTraceFrameIterator it(isolate, true);
   while (!it.done() && length < kMaxAllocationTraceLength) {
     JavaScriptFrame* frame = it.frame();
     SharedFunctionInfo* shared = frame->function()->shared();