Some clean ups for cache partitions.

pkg/analyzer/test/src/context/cache_test.dart

Index: pkg/analyzer/test/src/context/cache_test.dart
diff --git a/pkg/analyzer/test/src/context/cache_test.dart b/pkg/analyzer/test/src/context/cache_test.dart
index 6d977d60730f03d92af1ba39c5c9c1d0b515b17c..fd7e955cb40afca594b1603d5da87997898a85bf 100644
--- a/pkg/analyzer/test/src/context/cache_test.dart
+++ b/pkg/analyzer/test/src/context/cache_test.dart
@@ -728,7 +728,7 @@ class SdkCachePartitionTest extends CachePartitionTest {
   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() {
@@ -736,7 +736,7 @@ class SdkCachePartitionTest extends CachePartitionTest {
     SourceFactory factory = new SourceFactory(
         [new DartUriResolver(DirectoryBasedDartSdk.defaultSdk)]);
     AnalysisTarget target = factory.forUri("dart:core");
-    expect(partition.contains(target), isTrue);
+    expect(partition.isResponsibleFor(target), isTrue);
   }
 }
 
@@ -749,7 +749,7 @@ class UniversalCachePartitionTest extends CachePartitionTest {
   void test_contains() {
     UniversalCachePartition partition = new UniversalCachePartition(null);
     TestSource source = new TestSource();
-    expect(partition.contains(source), isTrue);
+    expect(partition.isResponsibleFor(source), isTrue);
   }
 }