Integration tests are failing with debugger related stack trace

[kenzieschmoll]

02:46 +8 ~7 -1: /home/travis/build/flutter/devtools/packages/devtools_app/test/integration_tests/integration_test.dart: integration debugging stepping, async step, async frames [E]
  Expected: [
              'performAction:debugging_app_async.dart',
              '<async break>',
              'main.run.<anonymous closure>:debugging_app_async.dart',
              '<async break>'
            ]
    Actual: [
              'performAction:debugging_app_async.dart',
              'main.run.<anonymous closure>:debugging_app_async.dart',
              'Timer._createTimer.<anonymous closure>:timer_patch.dart',
              '_Closure.call:function.dart'
            ]
     Which: was 'main.run.<anonymous closure>:debugging_app_async.dart' instead of '<async break>' at location [1]
  
  package:test_api                            expect
  test/integration_tests/debugger.dart 177:5  debuggingTests.<fn>

we need to figure out if this is an expected change or if this is a regression