1. Write the backing data array of a GrowableObjectArray as a reference

runtime/vm/dart_api_message.cc

Index: runtime/vm/dart_api_message.cc
diff --git a/runtime/vm/dart_api_message.cc b/runtime/vm/dart_api_message.cc
index d9debad474484c9590dddc4194942e3549df0b66..623cfc137d99101b39b052012d0bc64ae509c0e4 100644
--- a/runtime/vm/dart_api_message.cc
+++ b/runtime/vm/dart_api_message.cc
@@ -794,7 +794,7 @@ Dart_CObject* ApiMessageReader::ReadInternalVMObject(intptr_t class_id,
       value = AllocateDartCObjectArray(0);
       AddBackRef(object_id, value, kIsDeserialized);
       // Read the content of the GrowableObjectArray.
-      Dart_CObject* content = ReadObjectImpl();
+      Dart_CObject* content = ReadObjectRef();
       ASSERT(content->type == Dart_CObject_kArray);
       // Make the empty array allocated point to the backing store content.
       value->value.as_array.length = len;