Gather and report stats on the number of times flushed results are recomputed

pkg/analysis_server/lib/src/status/get_handler.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.src.status.get_handler;
 
 import 'dart:collection';
 import 'dart:convert';
 import 'dart:io';
 import 'dart:math';
@@ skipping 742 matching lines @@
           ]);
           _writeRow(buffer, [
             'Total',
             (explicitLineCount + implicitLineCount).toString(),
             '${explicitLineInfoCount + implicitLineInfoCount} / ${explicitSourceCount + implicitSourceCount}'
           ], classes: [
             null,
             "right"
           ]);
           buffer.write('</table>');
+
+          Map<ResultDescriptor, int> recomputedCounts =
+              CacheEntry.recomputedCounts;
+          List<ResultDescriptor> descriptors = recomputedCounts.keys.toList();
+          descriptors.sort(ResultDescriptor.SORT_BY_NAME);
+          buffer.write('<p><b>Results computed after being flushed</b></p>');
+          buffer.write(
+              '<table style="border-collapse: separate; border-spacing: 10px 5px;">');
+          _writeRow(buffer, ['Result', 'Count'], header: true);
+          for (ResultDescriptor descriptor in descriptors) {
+            _writeRow(buffer, [descriptor.name, recomputedCounts[descriptor]],
+                classes: [null, "right"]);
+          }
+          buffer.write('</table>');
         }, (StringBuffer buffer) {
           //
           // Write task model timing information.
           //
           buffer.write('<p><b>Task performance data</b></p>');
           buffer.write(
               '<table style="border-collapse: separate; border-spacing: 10px 5px;">');
           _writeRow(
               buffer,
               [
@@ skipping 206 matching lines @@
         if (entries == null) {
           buffer.write('<p>Not being analyzed in this context.</p>');
           return;
         }
         for (CacheEntry entry in entries) {
           Map<String, String> linkParameters = <String, String>{
             CONTEXT_QUERY_PARAM: folder.path,
             SOURCE_QUERY_PARAM: sourceUri
           };
           List<ResultDescriptor> results = _getExpectedResults(entry);
-          results.sort((ResultDescriptor first, ResultDescriptor second) =>
-              first.toString().compareTo(second.toString()));
+          results.sort(ResultDescriptor.SORT_BY_NAME);
 
           buffer.write('<h3>');
           buffer.write(HTML_ESCAPE.convert(entry.target.toString()));
           buffer.write('</h3>');
           buffer.write('<p>time</p><blockquote><p>Value</p><blockquote>');
           buffer.write(entry.modificationTime);
           buffer.write('</blockquote></blockquote>');
           for (ResultDescriptor result in results) {
             ResultData data = entry.getResultData(result);
             CacheState state = entry.getState(result);
@@ skipping 1468 matching lines @@
    */
   static String makeLink(
       String path, Map<String, String> params, String innerHtml,
       [bool hasError = false]) {
     Uri uri = new Uri(path: path, queryParameters: params);
     String href = HTML_ESCAPE.convert(uri.toString());
     String classAttribute = hasError ? ' class="error"' : '';
     return '<a href="$href"$classAttribute>$innerHtml</a>';
   }
 }