Add EvictingFileByteStore and make FileByteStore non-evicting.

pkg/analysis_server/lib/src/analysis_server.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 analysis.server;
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:core';
 import 'dart:io' as io;
@@ skipping 364 matching lines @@
           sink = io.stdout;
         } else if (name.startsWith('file:')) {
           String path = name.substring('file:'.length);
           sink = new io.File(path).openWrite(mode: io.FileMode.APPEND);
         }
       }
       _analysisPerformanceLogger = new nd.PerformanceLog(sink);
     }
     if (resourceProvider is PhysicalResourceProvider) {
       byteStore = new MemoryCachingByteStore(
-          new FileByteStore(
+          new EvictingFileByteStore(
               resourceProvider.getStateLocation('.analysis-driver').path,
               1024 * 1024 * 1024 /*1 GiB*/),
           64 * 1024 * 1024 /*64 MiB*/);
     } else {
       byteStore = new MemoryByteStore();
     }
     analysisDriverScheduler =
         new nd.AnalysisDriverScheduler(_analysisPerformanceLogger);
     analysisDriverScheduler.status.listen(sendStatusNotificationNew);
     analysisDriverScheduler.start();
@@ skipping 1731 matching lines @@
   /**
    * The [PerformanceTag] for time spent in server request handlers.
    */
   static PerformanceTag serverRequests = new PerformanceTag('serverRequests');
 
   /**
    * The [PerformanceTag] for time spent in split store microtasks.
    */
   static PerformanceTag splitStore = new PerformanceTag('splitStore');
 }