Support for removing empty statements (dartbug.com/16810).

pkg/analyzer/test/services/formatter_test.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.
 
 import 'dart:io';
 
 import 'package:path/path.dart';
 import 'package:unittest/unittest.dart';
 
 import 'package:analyzer/src/generated/scanner.dart';
 import 'package:analyzer/src/services/formatter_impl.dart';
 import 'package:analyzer/src/services/writer.dart';
 
 // Test data location ('pkg/analyzer/test/services/data')
 final TEST_DATA_DIR = join(dirname(fromUri(Platform.script)), 'data');
 
 main() {
 
   /// Data-driven statement tests
   group('stmt_tests.data', () {
+    // NOTE: statement tests are run with transforms enabled
     runTests('stmt_tests.data', (input, expectedOutput) {
-      expect(formatStatement(input) + '\n', equals(expectedOutput));
+      expect(formatStatement(input,
+          options: new FormatterOptions(codeTransforms: true)) + '\n',
+          equals(expectedOutput));
     });
   });
 
   /// Data-driven compilation unit tests
   group('cu_tests.data', () {
     runTests('cu_tests.data', (input, expectedOutput) {
       expectCUFormatsTo(input, expectedOutput);
     });
   });
 
@@ skipping 1398 matching lines @@
       input += lines[i++] + '\n';
     }
     while(++i < lines.length && !lines[i].startsWith('>>>')) {
       expectedOutput += lines[i] + '\n';
     }
     test('test - (${testIndex++})', () {
       expectClause(input, expectedOutput);
     });
   }
 }