Formatter method cascade indents.

pkg/analyzer_experimental/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 'package:unittest/unittest.dart';
 
 import 'package:analyzer_experimental/src/generated/scanner.dart';
 import 'package:analyzer_experimental/src/services/formatter_impl.dart';
 import 'package:analyzer_experimental/src/services/writer.dart';
 
@@ skipping 692 matching lines @@
         '  case "apple":\n'
         '    print("delish");\n'
         '    break;\n'
         '  case "fig":\n'
         '    print("bleh");\n'
         '    break;\n'
         '}'
       );
     });
 
+    test('stmt (cascades)', () {
+      expectStmtFormatsTo(
+        '"foo"\n'
+        '..toString()\n'
+        '..toString();',
+        '"foo"\n'
+        '    ..toString()\n'
+        '    ..toString();'
+      );
+    });
+    
     test('stmt (generics)', () {
       expectStmtFormatsTo(
         'var numbers = <int>[1, 2, (3 + 4)];',
         'var numbers = <int>[1, 2, (3 + 4)];'
       );
     });
 
     test('stmt (lists)', () {
       expectStmtFormatsTo(
         'var l = [1,2,3,4];',
@@ skipping 329 matching lines @@
     expect(() => new TokenStreamComparator(null, t1, t2).verifyEquals(),
     throwsA(new isInstanceOf<FormatterException>()));
 
 expectCUFormatsTo(src, expected, {transforms: true}) =>
     expect(formatCU(src, options: new FormatterOptions(
         codeTransforms: transforms)).source, equals(expected));
 
 expectStmtFormatsTo(src, expected, {transforms: true}) =>
     expect(formatStatement(src, options:
       new FormatterOptions(codeTransforms: transforms)), equals(expected));