Bumped matcher version constraint

lib/compact_vm_config.dart

 // Copyright (c) 2013, 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.
 
 /// A test configuration that generates a compact 1-line progress bar. The bar
 /// is updated in-place before and after each test is executed. If all tests
 /// pass, only a couple of lines are printed in the terminal. If a test fails,
 /// the failure is shown and the progress bar continues to be updated below it.
 library unittest.compact_vm_config;
 
@@ skipping 74 matching lines @@
     // Override and don't call the superclass onDone() to avoid printing the
     // "unittest-suite-..." boilerplate.
     Future.wait([stdout.close(), stderr.close()]).then((_) {
       _receivePort.close();
       exit(success ? 0 : 1);
     });
   }
 
   void onSummary(int passed, int failed, int errors, List<TestCase> results,
       String uncaughtError) {
-    var success = false;
     if (passed == 0 && failed == 0 && errors == 0 && uncaughtError == null) {
       _print('\nNo tests ran.');
     } else if (failed == 0 && errors == 0 && uncaughtError == null) {
       _progressLine('All tests passed!', _NONE);
       _print();
-      success = true;
     } else {
       _progressLine('Some tests failed.', _RED);
       _print();
       if (uncaughtError != null) {
         _print('Top-level uncaught error: $uncaughtError');
       }
       _print('$passed PASSED, $failed FAILED, $errors ERRORS');
     }
   }
 
@@ skipping 19 matching lines @@
     buffer.write(': ');
     buffer.write(color);
 
     // Ensure the line fits under MAX_LINE. [buffer] includes the color escape
     // sequences too. Because these sequences are not visible characters, we
     // make sure they are not counted towards the limit.
     int nonVisible = _nonVisiblePrefix +
         color.length +
         (_fail != 0 ? (_RED.length + _NONE.length) : 0);
     int len = buffer.length - nonVisible;
-    var mx = MAX_LINE - len;
     buffer.write(_snippet(message, MAX_LINE - len));
     buffer.write(_NONE);
 
     // Pad the rest of the line so that it looks erased.
     len = buffer.length - nonVisible - _NONE.length;
     if (len > _lastLength) {
       _lastLength = len;
     } else {
       while (len < _lastLength) {
         buffer.write(' ');
@@ skipping 56 matching lines @@
   // If the test is running on the Dart buildbots, we don't want to use this
   // config since it's output may not be what the bots expect.
   if (Platform.environment['LOGNAME'] == 'chrome-bot') {
     return;
   }
 
   unittestConfiguration = _singleton;
 }
 
 final _singleton = new CompactVMConfiguration();