Cache flushing implementation for the task model.

pkg/analyzer/test/generated/engine_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.
 
 // This code was auto-generated, is not intended to be edited, and is subject to
 // significant change. Please see the README file for more information.
 
 library engine.engine_test;
 
 import 'dart:async';
@@ skipping 5467 matching lines @@
   @override
   Stream<SourcesChangedEvent> get onSourcesChanged {
     fail("Unexpected invocation of onSourcesChanged");
     return null;
   }
   @override
   List<Source> get prioritySources {
     fail("Unexpected invocation of getPrioritySources");
     return null;
   }
+
   @override
   List<AnalysisTarget> get priorityTargets {
     fail("Unexpected invocation of visitCacheItems");
     return null;
   }
 
   @override
   ResolverVisitorFactory get resolverVisitorFactory {
     fail("Unexpected invocation of getResolverVisitorFactory");
     return null;
   }
 
   @override
   SourceFactory get sourceFactory {
     fail("Unexpected invocation of getSourceFactory");
     return null;
   }
-
   @override
   void set sourceFactory(SourceFactory factory) {
     fail("Unexpected invocation of setSourceFactory");
   }
   @override
   List<Source> get sources {
     fail("Unexpected invocation of sources");
     return null;
   }
   @override
@@ skipping 227 matching lines @@
   }
   @override
   AnalysisResult performAnalysisTask() {
     fail("Unexpected invocation of performAnalysisTask");
     return null;
   }
   @override
   void recordLibraryElements(Map<Source, LibraryElement> elementMap) {
     fail("Unexpected invocation of recordLibraryElements");
   }
+
   @override
   void removeListener(AnalysisListener listener) {
     fail("Unexpected invocation of removeListener");
   }
 
   @override
   CompilationUnit resolveCompilationUnit(
       Source unitSource, LibraryElement library) {
     fail("Unexpected invocation of resolveCompilationUnit");
     return null;
@@ skipping 837 matching lines @@
   @override
   bool exists() => true;
 }
 
 class _UniversalCachePartitionTest_test_setMaxCacheSize
     implements CacheRetentionPolicy {
   @override
   RetentionPriority getAstPriority(Source source, SourceEntry sourceEntry) =>
       RetentionPriority.LOW;
 }