Preprocess structured stack trace on GC to get rid of code reference.

src/factory.h

Index: src/factory.h
diff --git a/src/factory.h b/src/factory.h
index 72991d9bf0ca7ef405c170a6f19029a5a2f3305f..0ab312b2b7e1b283a307a9070823725fcb888565 100644
--- a/src/factory.h
+++ b/src/factory.h
@@ -644,6 +644,10 @@ class Factory final {
     isolate()->heap()->set_string_table(*table);
   }
 
+  inline void set_weak_stack_trace_list(Handle<WeakFixedArray> list) {
+    isolate()->heap()->set_weak_stack_trace_list(*list);
+  }
+
   Handle<String> hidden_string() {
     return Handle<String>(&isolate()->heap()->hidden_string_);
   }