Re-enable unittest tests disabled due to issues 10935 and 11473.

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
 
 # Skip non-test files ending with "_test".
 scheduled_test/lib/*: Skip
 
 scheduled_test/test/scheduled_server_test: Pass, Fail, Slow, Crash # Issue 9231, 9582
 scheduled_test/test/scheduled_process_test: Pass, Slow # Issue 9231
 
 [ ($compiler == none && $runtime == drt) || $compiler == dartanalyzer ]
 custom_element/test/custom_element_test: Fail # Issue 12142
 
 [ $runtime == vm ]
 watcher/test/no_subscription_test: Pass, Fail # Issue 12107
 watcher/test/directory_watcher_test: Pass, Fail # Issue 12107
 
-[ $compiler == dart2js && $runtime == ff ]
-unittest/test/unittest_*_test: Pass, Timeout # http://dartbug.com/11473
-
 [ $runtime == d8 || $runtime == jsshell ]
 unittest/test/unittest_nested_groups_setup_teardown_test: Pass, Fail # http://dartbug.com/10109
 stack_trace/test/vm_test: Fail, OK # VM-specific traces
 sequence_zip/test/stream_test: Fail, OK # Timers are not supported.
 
 [$compiler == dart2dart]
 *: Skip
 
 [ $compiler == dart2js || $compiler == dart2dart ]
 source_maps/test/vlq_test: Fail # A VLQ test checks for large numbers that
@@ skipping 28 matching lines @@
 analyzer_experimental/test/generated/ast_test: Fail, Slow # Issue 11230
 stack_trace/test/trace_test: Pass, Timeout # Issue 11645
 
 [ $compiler == dartc || $compiler == dartanalyzer || $compiler == dart2analyzer]
 # These tests are runtime negative but statically positive, so we skip
 # them in the analyzer.
 unittest/test/mock_regexp_negative_test: Skip
 unittest/test/mock_stepwise_negative_test: Skip
 
 [ $compiler == dart2js && $csp ]
-unittest/test/unittest_*_test: Pass, Crash # Issue 10935
 observe/test/observe_test: Fail # Issue 11970
 observe/test/path_observer_test: Fail  # Issue 11970
 mdv/test/binding_syntax_test: Fail # Issue 11970
 serialization/test/serialization_test: Fail # Issue 6490
 serialization/test/no_library_test: Fail # Issue 6490
 
 # This test cannot run under CSP because it is injecting a JavaScript polyfill
 mutation_observer: Skip
 
 [ $compiler == dart2js && $minified ]
@@ skipping 90 matching lines @@
 
 # Skip tests on the VM if the package depends on dart:html
 [ $runtime == vm ]
 custom_element: Skip
 mdv: Skip
 mutation_observer: Skip
 
 [ $runtime == safari || $runtime == chrome || $runtime == ie9 || $runtime == ff || $runtime == dartium || $runtime == drt ]
 docgen/test/single_library_test: Skip # Uses dart:io