Make creation of list literal more resilient to changes in the underlying

runtime/vm/dart_api_impl.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "include/dart_api.h"
 
 #include "vm/bigint_operations.h"
 #include "vm/class_finalizer.h"
 #include "vm/compiler.h"
 #include "vm/dart.h"
@@ skipping 1742 matching lines @@
                         str_obj.MakeExternal(array, length, peer, cback));
 }
 
 
 // --- Lists ---
 
 
 static RawInstance* GetListInstance(Isolate* isolate, const Object& obj) {
   if (obj.IsInstance()) {
     const Instance& instance = Instance::Cast(obj);
-    const Type& type =
-        Type::Handle(isolate, isolate->object_store()->list_interface());
+    const Class& obj_class = Class::Handle(isolate, obj.clazz());
+    const Class& list_class =
+        Class::Handle(isolate, isolate->object_store()->list_class());
     Error& malformed_type_error = Error::Handle(isolate);
-    if (instance.IsInstanceOf(type,
+    if (obj_class.IsSubtypeOf(TypeArguments::Handle(isolate),
+                              list_class,
                               TypeArguments::Handle(isolate),
                               &malformed_type_error)) {
       ASSERT(malformed_type_error.IsNull());  // Type is a raw List.
       return instance.raw();
     }
   }
   return Instance::null();
 }
 
 
@@ skipping 2713 matching lines @@
   }
   {
     NoGCScope no_gc;
     RawObject* raw_obj = obj.raw();
     isolate->heap()->SetPeer(raw_obj, peer);
   }
   return Api::Success(isolate);
 }
 
 }  // namespace dart