(TBR) fix embedder tests on Windows

pkg/analysis_server/test/context_manager_test.dart

 // Copyright (c) 2014, 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 test.context.directory.manager;
 
 import 'dart:collection';
 
 import 'package:analysis_server/src/context_manager.dart';
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/file_system/memory_file_system.dart';
 import 'package:analyzer/instrumentation/instrumentation.dart';
 import 'package:analyzer/source/embedder.dart';
 import 'package:analyzer/source/error_processor.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/error.dart';
+import 'package:analyzer/src/generated/java_io.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/generated/source_io.dart';
 import 'package:analyzer/src/services/lint.dart';
 import 'package:linter/src/plugin/linter_plugin.dart';
 import 'package:linter/src/rules/avoid_as.dart';
 import 'package:package_config/packages.dart';
 import 'package:path/path.dart';
 import 'package:plugin/manager.dart';
 import 'package:plugin/plugin.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
@@ skipping 332 matching lines @@
     var lintNames = lints.map((lint) => lint.name);
 
     expect(
         lintNames,
         unorderedEquals(
             ['avoid_as' /* embedder */, 'camel_case_types' /* options */]));
 
     // Sanity check embedder libs.
     var source = context.sourceFactory.forUri('dart:foobar');
     expect(source, isNotNull);
-    expect(source.fullName, '/my/proj/sdk_ext/entry.dart');
+    expect(source.fullName,
+        '/my/proj/sdk_ext/entry.dart'.replaceAll('/', JavaFile.separator));
   }
 
   test_embedder_packagespec() async {
     // Create files.
     String libPath = newFolder([projPath, LIB_NAME]);
     newFile([libPath, 'main.dart']);
     newFile([libPath, 'nope.dart']);
     String sdkExtPath = newFolder([projPath, 'sdk_ext']);
     newFile([sdkExtPath, 'entry.dart']);
     String sdkExtSrcPath = newFolder([projPath, 'sdk_ext', 'src']);
@@ skipping 16 matching lines @@
     manager.setRoots(<String>[projPath], <String>[], <String, String>{});
     await pumpEventQueue();
     // Confirm that one context was created.
     var contexts =
         manager.contextsInAnalysisRoot(resourceProvider.newFolder(projPath));
     expect(contexts, isNotNull);
     expect(contexts.length, equals(1));
     var context = contexts[0];
     var source = context.sourceFactory.forUri('dart:foobar');
     expect(source, isNotNull);
-    expect(source.fullName, equals('/my/proj/sdk_ext/entry.dart'));
+    expect(source.fullName,
+        '/my/proj/sdk_ext/entry.dart'.replaceAll('/', JavaFile.separator));
     // We can't find dart:core because we didn't list it in our
     // embedder_libs map.
     expect(context.sourceFactory.forUri('dart:core'), isNull);
     // We can find dart:typed_data because we listed it in our
     // embedder_libs map.
     expect(context.sourceFactory.forUri('dart:typed_data'), isNotNull);
   }
 
   test_error_filter_analysis_option() async {
     // Create files.
@@ skipping 2001 matching lines @@
 class TestUriResolver extends UriResolver {
   Map<Uri, Source> uriMap;
 
   TestUriResolver(this.uriMap);
 
   @override
   Source resolveAbsolute(Uri uri, [Uri actualUri]) {
     return uriMap[uri];
   }
 }