Remove the old task model

pkg/analyzer/test/src/context/mock_sdk.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.src.mock_sdk;
 
 import 'package:analyzer/file_system/file_system.dart' as resource;
 import 'package:analyzer/file_system/memory_file_system.dart' as resource;
 import 'package:analyzer/src/context/cache.dart';
 import 'package:analyzer/src/context/context.dart';
@@ skipping 303 matching lines @@
       Uri uri = new Uri(scheme: 'dart', path: dartUri.substring(5));
       return file.createSource(uri);
     }
 
     // If we reach here then we tried to use a dartUri that's not in the
     // table above.
     return null;
   }
 }
 
+class _MockSdkFile {
+  final String path;
+  final String content;
+
+  const _MockSdkFile(this.path, this.content);
+}
+
 class _MockSdkLibrary implements SdkLibrary {
   final String shortName;
   final String path;
   final String content;
   final List<_MockSdkFile> parts;
 
   const _MockSdkLibrary(this.shortName, this.path, this.content,
       [this.parts = const <_MockSdkFile>[]]);
 
   @override
@@ skipping 13 matching lines @@
 
   @override
   bool get isShared => throw unimplemented;
 
   @override
   bool get isVmLibrary => throw unimplemented;
 
   UnimplementedError get unimplemented => new UnimplementedError();
 }
 
-class _MockSdkFile {
-  final String path;
-  final String content;
-
-  const _MockSdkFile(this.path, this.content);
-}
-
 /**
  * An [AnalysisContextImpl] that only contains sources for a Dart SDK.
  */
 class _SdkAnalysisContext extends AnalysisContextImpl {
   final DartSdk sdk;
 
   _SdkAnalysisContext(this.sdk);
 
   @override
   AnalysisCache createCacheFromSourceFactory(SourceFactory factory) {
     if (factory == null) {
       return super.createCacheFromSourceFactory(factory);
     }
-    return new AnalysisCache(<CachePartition>[
-      AnalysisEngine.instance.partitionManager_new.forSdk(sdk)
-    ]);
+    return new AnalysisCache(
+        <CachePartition>[AnalysisEngine.instance.partitionManager.forSdk(sdk)]);
   }
 }