Add a stack chain class to the stack trace package.

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 22 matching lines @@
 [ $compiler == dart2js && $checked && $runtime == ie9 ]
 crypto/test/base64_test: Timeout # Issue 12486
 template_binding/test/template_binding_test: Fail # Issue 15093
 
 [ $compiler == dart2js && $checked && $runtime == d8 ]
 serialization/test/serialization_test: Pass, RuntimeError # Issue 14735
 
 [ $runtime == d8 || $runtime == jsshell ]
 unittest/test/unittest_nested_groups_setup_teardown_test: Pass, RuntimeError # http://dartbug.com/10109
 stack_trace/test/vm_test: RuntimeError, OK # VM-specific traces
+stack_trace/test/chain_test: Fail # Issues 15171 and 15105
 sequence_zip/test/stream_test: RuntimeError, OK # Timers are not supported.
 unittest/test/missing_tick_test: Fail # Timer interface not supported: dartbug.com/7728.
 
 [ $runtime == vm || $runtime == d8 || $runtime == jsshell ]
 polymer/example: Skip # Uses dart:html
 polymer/test/attr_deserialize_test: Skip # uses dart:html
 polymer/test/attr_mustache_test: Skip #uses dart:html
 polymer/test/bind_test: Skip # uses dart:html
 polymer/test/bind_mdv_test: Skip # uses dart:html
 polymer/test/custom_event_test: Skip # uses dart:html
@@ skipping 98 matching lines @@
 mutation_observer: Skip
 
 [ $compiler == dart2js && $minified ]
 # The unminified unittest tests test that the real names of Dart types are
 # printed. Minified versions of these tests exist that test the behavior when
 # minified.
 unittest/test/*_unminified_test: Skip # DO NOT COPY THIS UNLESS YOU WORK ON DART2JS
 
 [ $compiler == dart2js && $browser ]
 stack_trace/test/vm_test: Fail, OK # VM-specific traces
+stack_trace/test/chain_test: Fail # Issues 15171 and 15105
 crypto/test/sha256_test: Slow, Pass
 crypto/test/sha1_test: Slow, Pass
 polymer/example/component: Fail # Issue 13198
 polymer/example/canonicalization/test/canonicalization_test: Fail, OK # tests development only behavior
 
 [ $compiler == dart2js && $runtime == chromeOnAndroid ]
 docgen/test/single_library_test: Fail # TODO(kasperl): Please triage.
 intl/test/date_time_format_http_request_test: Fail # TODO(kasperl): Please triage.
 
 [ $compiler == none && $runtime == vm && $system == windows ]
@@ skipping 160 matching lines @@
 watcher/test/*/linux_test: Skip
 
 [ $runtime == vm && ($system == windows || $system == linux) ]
 watcher/test/*/mac_os_test: Skip
 
 [ $runtime == vm && $system == linux ]
 watcher/test/*/linux_test: Pass, Slow # Issue 14606
 
 [ $runtime == vm && $system == macos ]
 watcher/test/no_subscribers/mac_os_test: Fail # Issue 14793 (see test file for details)