Fully deserialize the scope chain after parsing, not before

src/handles.h

Index: src/handles.h
diff --git a/src/handles.h b/src/handles.h
index a7eb31efca959bca1374f4c98c6e81d5262eb155..1e7fcfc1c0e0c688af59f4fe8e8cf0a3ad6bac52 100644
--- a/src/handles.h
+++ b/src/handles.h
@@ -206,6 +206,10 @@ class MaybeHandle final {
     USE(a);
   }
 
+  template <typename S>
+  V8_INLINE MaybeHandle(S* object, Isolate* isolate)
+      : MaybeHandle(handle(object, isolate)) {}
+
   V8_INLINE void Assert() const { DCHECK_NOT_NULL(location_); }
   V8_INLINE void Check() const { CHECK_NOT_NULL(location_); }