Fixes for empty class and method bodies.

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';
@@ skipping 170 matching lines @@
           'foo() {\n'
           '}\n',
           'import "dart:io";\n\n'
           'import "package:unittest/unittest.dart";\n'
           'foo() {\n'
           '}\n'
       );
       expectCUFormatsTo(
           'library a; class B { }',
           'library a;\n'
-          'class B {\n'
-          '}\n'
+          'class B {}\n'
       );
     });
 
     test('CU - method invocations', () {
       expectCUFormatsTo(
           'class A {\n'
           '  foo() {\n'
           '    bar();\n'
           '    for (int i = 0; i < 42; i++) {\n'
           '      baz();\n'
@@ skipping 742 matching lines @@
                           transforms: false);
     });
 
     // smoketest to ensure we're enforcing the 'no gratuitous linebreaks'
     // opinion
     test('CU (eat newlines)', () {
       expectCUFormatsTo(
         'abstract\n'
         'class\n'
         'A{}',
-        'abstract class A {\n'
-        '}\n'
+        'abstract class A {}\n'
       );
     });
 
 //    test('line continuations - 1', () {
 //      expectStmtFormatsTo(
 //          'if (x &&\n'
 //          '    y) {\n'
 //          '  print("yes!");\n'
 //          '}',
 //          'if (x &&\n'
@@ skipping 480 matching lines @@
       input += lines[i++] + '\n';
     }
     while(++i < lines.length && !lines[i].startsWith('>>>')) {
       expectedOutput += lines[i] + '\n';
     }
     test('test - (${testIndex++})', () {
       expectClause(input, expectedOutput);
     });
   }
 }