Add summary to analyze_* tests.

tests/compiler/dart2js/analyze_helper.dart

 // Copyright (c) 2016, 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 analyze_helper;
 
 import 'dart:async';
 import 'dart:io';
 import 'package:compiler/compiler.dart' as api;
 import 'package:compiler/src/apiimpl.dart';
 import 'package:compiler/src/commandline_options.dart';
 import 'package:compiler/src/diagnostics/messages.dart' show
     Message,
     MessageKind;
 import 'package:compiler/src/filenames.dart';
 import 'package:compiler/src/options.dart' show
     CompilerOptions;
 import 'package:compiler/src/source_file_provider.dart';
 import 'package:compiler/src/util/uri_extras.dart';
+import 'diagnostic_helper.dart';
 
 /// Option for hiding whitelisted messages.
 const String HIDE_WHITELISTED = '--hide-whitelisted';
 
 /**
  * Map of whitelisted warnings and errors.
  *
  * Only add a whitelisting together with a bug report to dartbug.com and add
  * the bug issue number as a comment on the whitelisting.
  *
  * Use an identifiable suffix of the file uri as key. Use a fixed substring of
  * the error/warning message in the list of whitelistings for each file.
  */
 // TODO(johnniwinther): Support canonical URIs as keys and message kinds as
 // values.
 
 class CollectingDiagnosticHandler extends FormattingDiagnosticHandler {
   bool hasWarnings = false;
   bool hasHint = false;
   bool hasErrors = false;
   bool lastWasWhitelisted = false;
   bool showWhitelisted = true;
 
   Map<String, Map<dynamic/*String|MessageKind*/, int>> whiteListMap
       = new Map<String, Map<dynamic/*String|MessageKind*/, int>>();
   List<MessageKind> skipList;
+  List<CollectedMessage> collectedMessages = <CollectedMessage>[];
 
   CollectingDiagnosticHandler(
       Map<String, List/*<String|MessageKind>*/> whiteList,
       this.skipList,
       SourceFileProvider provider)
       : super(provider) {
     whiteList.forEach((String file, List/*<String|MessageKind>*/ messageParts) {
       var useMap = new Map<dynamic/*String|MessageKind*/, int>();
       for (var messagePart in messageParts) {
         useMap[messagePart] = 0;
       }
       whiteListMap[file] = useMap;
     });
   }
 
   bool checkResults() {
     bool validWhiteListUse = checkWhiteListUse();
     reportWhiteListUse();
+    reportCollectedMessages();
     return !hasWarnings && !hasHint && !hasErrors && validWhiteListUse;
   }
 
   bool checkWhiteListUse() {
     bool allUsed = true;
     for (String file in whiteListMap.keys) {
       for (var messagePart in whiteListMap[file].keys) {
         if (whiteListMap[file][messagePart] == 0) {
           print("Whitelisting '$messagePart' is unused in '$file'. "
                 "Remove the whitelisting from the whitelist map.");
           allUsed = false;
         }
       }
     }
     return allUsed;
   }
 
+  void reportCollectedMessages() {
+    if (collectedMessages.isNotEmpty) {
+      print('----------------------------------------------------------------');
+      print('Unexpected messages:');
+      print('----------------------------------------------------------------');
+      for (CollectedMessage message in collectedMessages) {
+        super.report(message.message, message.uri, message.begin,
+            message.end, message.text, message.kind);
+      }
+      print('----------------------------------------------------------------');
+    }
+  }
+
   void reportWhiteListUse() {
     for (String file in whiteListMap.keys) {
       for (var messagePart in whiteListMap[file].keys) {
         int useCount = whiteListMap[file][messagePart];
         print("Whitelisted message '$messagePart' suppressed $useCount "
               "time(s) in '$file'.");
       }
     }
   }
 
@@ skipping 58 matching lines @@
           super.report(message, uri, begin, end, text, kind);
         }
         return;
       }
       hasErrors = true;
     }
     if (kind == api.Diagnostic.INFO && lastWasWhitelisted) {
       return;
     }
     lastWasWhitelisted = false;
+    if (kind != api.Diagnostic.VERBOSE_INFO) {
+      collectedMessages.add(new CollectedMessage(
+          message, uri, begin, end, text, kind));
+    }
     super.report(message, uri, begin, end, text, kind);
   }
 }
 
 typedef bool CheckResults(CompilerImpl compiler,
                           CollectingDiagnosticHandler handler);
 
 enum AnalysisMode {
   /// Analyze all declarations in all libraries in one go.
   ALL,
@@ skipping 91 matching lines @@
   if (checkResults != null) {
     result = checkResults(compiler, handler);
   } else {
     result = handler.checkResults();
   }
   if (!result) {
     print(MESSAGE);
     exit(1);
   }
 }