Rename dart:typeddata to dart:typed_data.

tests/html/typed_arrays_1_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.
 
 library TypedArrays1Test;
 import '../../pkg/unittest/lib/unittest.dart';
 import '../../pkg/unittest/lib/html_individual_config.dart';
 import 'dart:html';
-import 'dart:typeddata';
+import 'dart:typed_data';
 
 main() {
   useHtmlIndividualConfiguration();
 
   var isnumList = predicate((x) => x is List<num>, 'is a List<num>');
   var isStringList = predicate((x) => x is List<String>, 'is a List<String>');
   var expectation = Platform.supportsTypedData ? returnsNormally : throws;
 
   group('supported', () {
     test('supported', () {
@@ skipping 43 matching lines @@
         expect(() {
           var a = new Float32List(10);
           expect(a, isList);
           expect(a, isnumList);
           expect(a, isNot(isStringList));
         }, expectation);
       });
     }
   });
 }