Revert "Attempt to re-commit Dartdoc exports."

sdk/lib/_internal/dartdoc/test/utils_test.dart

-// 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.
-
-import 'package:unittest/unittest.dart';
-
-import '../lib/src/dartdoc/utils.dart';
-
-void main() {
-  group('countOccurrences', () {
-    test('empty text returns 0', () {
-      expect(countOccurrences('', 'needle'), equals(0));
-    });
-
-    test('one occurrence', () {
-      expect(countOccurrences('bananarama', 'nara'), equals(1));
-    });
-
-    test('multiple occurrences', () {
-      expect(countOccurrences('bananarama', 'a'), equals(5));
-    });
-
-    test('overlapping matches do not count', () {
-      expect(countOccurrences('bananarama', 'ana'), equals(1));
-    });
-  });
-
-  group('repeat', () {
-    test('zero times returns an empty string', () {
-      expect(repeat('ba', 0), isEmpty);
-    });
-
-    test('one time returns the string', () {
-      expect(repeat('ba', 1), equals('ba'));
-    });
-
-    test('multiple times', () {
-      expect(repeat('ba', 3), equals('bababa'));
-    });
-
-    test('multiple times with a separator', () {
-      expect(repeat('ba', 3, separator: ' '), equals('ba ba ba'));
-    });
-  });
-}