Mark pkg/analyzer/test/src/context/context_test as Timeout on dart2js.

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 31 matching lines @@
 collection/test/equality_test/04: Fail # Issue 1533
 collection/test/equality_test/05: Fail # Issue 1533
 collection/test/equality_test/none: Pass, Fail # Issue 14348
 docgen/test/*: SkipSlow # Far too slow
 typed_data/test/typed_buffers_test/01: Fail # Not supporting Int64List, Uint64List.
 analyzer/test/generated/engine_test: SkipSlow
 analyzer/test/generated/static_type_warning_code_test: Pass, Slow
 analyzer/test/generated/compile_time_error_code_test: Pass, Slow
 
 analyzer/test/enum_test: Slow, Pass, Fail # Issue 21323
+analyzer/test/src/context/context_test: Pass, Timeout # dartbug.com/23658
 
 analysis_server/test/*: Skip # Issue 22161
 analysis_server/test/search/element_references_test: Pass, Slow
 analysis_server/test/services/index/store/codec_test: Pass, Slow
 analysis_server/test/domain_completion_test: Pass, Slow
 analysis_server/test/edit/assists_test: Pass, Slow
 analysis_server/test/edit/format_test: Pass, Slow
 
 # Analysis server integration tests don't make sense to run under
 # dart2js, since the code under test always runs in the Dart vm as a
@@ skipping 120 matching lines @@
 analyzer/test/src/task/manager_test: Crash # (try {test(spec,body);}finally {environment.soloNestingLevel-- ;}): try/finally
 analyzer/test/src/task/model_test: Crash # (try {test(spec,body);}finally {environment.soloNestingLevel-- ;}): try/finally
 analyzer/test/src/util/asserts_test: Crash # (try {test(spec,body);}finally {environment.soloNestingLevel-- ;}): try/finally
 analyzer/test/src/util/lru_map_test: Crash # (try {test(spec,body);}finally {environment.soloNestingLevel-- ;}): try/finally
 fixnum/test/int_32_test: Crash # (try {body();}catch ...  try/finally
 fixnum/test/int_64_test: Crash # (try {body();}catch ...  try/finally
 js_ast/test/printer_callback_test: Crash # (switch (cat){case N...  Unhandled node
 typed_data/test/typed_buffers_test/01: Crash # (switch (testCase.re...  Unhandled node
 typed_data/test/typed_buffers_test/none: Crash # (switch (testCase.re...  Unhandled node
 typed_mock/test/typed_mock_test: Crash # (try {body();}catch ...  try/finally