| // Copyright 2014 the V8 project authors. All rights reserved. | |
| // Use of this source code is governed by a BSD-style license that can be | |
| // found in the LICENSE file. | |
| // Flags: --allow-natives-syntax --track-field-types | |
| var b1 = {d: 1}; var b2 = {d: 2}; | |
| var f1 = {x: 1}; var f2 = {x: 2}; | |
| f1.b = b1; | |
| f2.x = {}; | |
| b2.d = 4.2; | |
| f2.b = b2; | |
| %TryMigrateInstance(f1); |