Fix for map and list literal indentation (dartbug.com/15453).

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 'package:unittest/unittest.dart';
 
 import 'package:analyzer/src/generated/java_core.dart' show CharSequence;
 import 'package:analyzer/src/generated/scanner.dart';
 import 'package:analyzer/src/services/formatter_impl.dart';
 import 'package:analyzer/src/services/writer.dart';
@@ skipping 764 matching lines @@
         'var numbers = <int>[1, 2, (3 + 4)];',
         'var numbers = <int>[1, 2, (3 + 4)];'
       );
     });
 
     test('stmt (lists)', () {
       expectStmtFormatsTo(
         'var l = [1,2,3,4];',
         'var l = [1, 2, 3, 4];'
       );
+      expectStmtFormatsTo(
+        'var l = [\n'
+        '1,\n'
+        '2,\n'
+        '];',
+        'var l = [\n'
+        '  1,\n'
+        '  2,\n'
+        '];'
+      );
       //Dangling ','
       expectStmtFormatsTo(
         'var l = [1,];',
         'var l = [1,];'
       );
     });
 
     test('stmt (maps)', () {
       expectStmtFormatsTo(
         'var map = const {"foo": "bar", "fuz": null};',
         'var map = const {"foo": "bar", "fuz": null};'
       );
 
+      expectStmtFormatsTo(
+          'var map = {\n'
+          '"foo": "bar",\n'
+          '"bar": "baz"'
+          '};',
+          'var map = {\n'
+          '  "foo": "bar",\n'
+          '  "bar": "baz"'
+          '};'
+      );
+
       //Dangling ','
       expectStmtFormatsTo(
         'var map = {"foo": "bar",};',
         'var map = {"foo": "bar",};'
       );
     });
 
     test('stmt (try/catch)', () {
       expectStmtFormatsTo(
         'try {\n'
@@ skipping 307 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));