More analyzer updates, and handle negative_tests

test/end_to_end_test.dart

-// Copyright (c) 2015, 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.
-
-/// Tests that run the checker end-to-end using the file system, but with a mock
-/// SDK.
-library dev_compiler.test.end_to_end;
-
-import 'package:dev_compiler/devc.dart';
-import 'package:dev_compiler/src/options.dart';
-import 'package:test/test.dart';
-import 'testing.dart' show realSdkContext, testDirectory;
-
-main() {
-  var mockSdkContext = createAnalysisContextWithSources(
-      new SourceResolverOptions(useMockSdk: true));
-  var compiler = new BatchCompiler(mockSdkContext, new CompilerOptions());
-  _check(file) => compiler.compileFromUriString('$testDirectory/$file.dart');
-
-  test('checker runs correctly (end-to-end)', () {
-    _check('samples/funwithtypes');
-  });
-
-  test('checker accepts files with imports', () {
-    _check('samples/import_test');
-  });
-
-  test('checker tests function types', () {
-    // TODO(vsm): Check for correct down casts.
-    _check('samples/function_type_test');
-  });
-
-  test('checker tests runtime checks', () {
-    // TODO(sigmund,vsm): Check output for invalid checks.
-    _check('samples/runtimetypechecktest');
-  });
-
-  test('checker tests return values', () {
-    // TODO(vsm): Check for conversions.
-    _check('samples/return_test');
-  });
-}