Some clean ups for cache partitions.

pkg/analyzer/test/src/context/cache_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.
 
 library test.src.task.driver_test;
 
 import 'package:analyzer/src/context/cache.dart';
 import 'package:analyzer/src/generated/engine.dart'
     show
         AnalysisContext,
@@ skipping 710 matching lines @@
 
 @reflectiveTest
 class SdkCachePartitionTest extends CachePartitionTest {
   CachePartition createPartition() {
     return new SdkCachePartition(null);
   }
 
   void test_contains_false() {
     CachePartition partition = createPartition();
     AnalysisTarget target = new TestSource();
-    expect(partition.contains(target), isFalse);
+    expect(partition.isResponsibleFor(target), isFalse);
   }
 
   void test_contains_true() {
     SdkCachePartition partition = new SdkCachePartition(null);
     SourceFactory factory = new SourceFactory(
         [new DartUriResolver(DirectoryBasedDartSdk.defaultSdk)]);
     AnalysisTarget target = factory.forUri("dart:core");
-    expect(partition.contains(target), isTrue);
+    expect(partition.isResponsibleFor(target), isTrue);
   }
 }
 
 @reflectiveTest
 class UniversalCachePartitionTest extends CachePartitionTest {
   CachePartition createPartition() {
     return new UniversalCachePartition(null);
   }
 
   void test_contains() {
     UniversalCachePartition partition = new UniversalCachePartition(null);
     TestSource source = new TestSource();
-    expect(partition.contains(source), isTrue);
+    expect(partition.isResponsibleFor(source), isTrue);
   }
 }
 
 class _InternalAnalysisContextMock extends TypedMock
     implements InternalAnalysisContext {
   noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
 }