[serializer] do not serialize script wrappers.

src/snapshot/code-serializer.cc

Index: src/snapshot/code-serializer.cc
diff --git a/src/snapshot/code-serializer.cc b/src/snapshot/code-serializer.cc
index 86a91643d246d5595b2cdd97497b0f8425d55c62..511f1117521b257fe4ec02c378d13d1e62c478ec 100644
--- a/src/snapshot/code-serializer.cc
+++ b/src/snapshot/code-serializer.cc
@@ -104,6 +104,12 @@ void CodeSerializer::SerializeObject(HeapObject* obj, HowToCode how_to_code,
     return SerializeObject(isolate()->heap()->undefined_value(), how_to_code,
                            where_to_point, skip);
   }
+
+  if (obj->IsScript()) {
+    // Wrapper object is a context-dependent JSValue. Reset it here.
+    Script::cast(obj)->set_wrapper(isolate()->heap()->undefined_value());
+  }
+
   // Past this point we should not see any (context-specific) maps anymore.
   CHECK(!obj->IsMap());
   // There should be no references to the global object embedded.