|  | // Copyright (c) 2019, 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. | 
|  |  | 
|  | // VMOptions=--stacktrace_every=1 --deterministic --optimization-counter-threshold=6 --optimization-filter=baz | 
|  |  | 
|  | // Regression test for https://github.com/dart-lang/sdk/issues/38743. | 
|  | // Verifies that VM doesn't crash when collecting debugger stack traces in | 
|  | // closures inside instance methods. | 
|  |  | 
|  | class A { | 
|  | foo(unusedArg0) { | 
|  | baz() { | 
|  | for (int i = 0; i < 3; ++i) { | 
|  | print('[$i] $unusedArg0'); | 
|  | } | 
|  | } | 
|  |  | 
|  | baz(); | 
|  | } | 
|  | } | 
|  |  | 
|  | main() { | 
|  | A().foo(null); | 
|  | } |