barback/test/package_graph/repetition_test times out in debug mode. Mark it as such.

pkg/pkg.status

 # 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.
 
 # Don't run any test-like files that show up in packages directories. It
 # shouldn't be necessary to run "pub install" in these packages, but if you do
 # it shouldn't break the tests.
 */packages/*/*: Skip
 */*/packages/*/*: Skip
 */*/*/packages/*/*: Skip
@@ skipping 46 matching lines @@
 analysis_server/test/domain_server_test: Pass, Timeout
 analyzer/test/generated/element_test: Pass, Timeout
 analyzer/test/generated/parser_test: Pass, Timeout
 code_transformers/test/resolver_test: Pass, Timeout
 docgen/test/*: Skip # Slow
 polymer/test/build/all_phases_test: Skip # Slow
 smoke/test/codegen/end_to_end_test: Pass, Timeout
 smoke/test/codegen/recorder_test: Pass, Timeout
 template_binding/test/template_binding_test: Pass, Timeout
 third_party/html5lib/test/tokenizer_test: Pass, Timeout
+barback/test/package_graph/repetition_test: Pass, Timeout
 
 [ $runtime == vm && ( $arch == simarm || $arch == simmips ) ]
 barback/test/too_many_open_files_test: Skip # 14220
 code_transformers/test/resolver_test: Skip # Issue 17908
 docgen/test/*: Skip # Too slow
 polymer/test/build/all_phases_test: Skip # Slow
 polymer/test/build/script_compactor_test: Skip # Slow
 third_party/html5lib/test/tokenizer_test: Pass, Slow
 
 [ $compiler == dart2js ]
@@ skipping 342 matching lines @@
 http/test/multipart_test: Fail
 http/test/request_test: Fail
 http/test/response_test: Fail
 oauth2/test/authorization_code_grant_test: Fail
 oauth2/test/client_test: Fail
 oauth2/test/credentials_test: Fail
 oauth2/test/handle_access_token_response_test: Fail
 
 [ $runtime == drt ]
 http/test/html/client_test: Skip # Issue 18566