Add summary to analyze_* tests.

tests/compiler/dart2js/analyze_helper.dart

Index: tests/compiler/dart2js/analyze_helper.dart
diff --git a/tests/compiler/dart2js/analyze_helper.dart b/tests/compiler/dart2js/analyze_helper.dart
index 61b52be8de1ce672182b6eb86391b04150521fd8..fb06d78cf187bb8408bbcc7617c036a53a8849d5 100644
--- a/tests/compiler/dart2js/analyze_helper.dart
+++ b/tests/compiler/dart2js/analyze_helper.dart
@@ -17,6 +17,7 @@ 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';
@@ -43,6 +44,7 @@ class CollectingDiagnosticHandler extends FormattingDiagnosticHandler {
   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,
@@ -61,6 +63,7 @@ class CollectingDiagnosticHandler extends FormattingDiagnosticHandler {
   bool checkResults() {
     bool validWhiteListUse = checkWhiteListUse();
     reportWhiteListUse();
+    reportCollectedMessages();
     return !hasWarnings && !hasHint && !hasErrors && validWhiteListUse;
   }
 
@@ -78,6 +81,19 @@ class CollectingDiagnosticHandler extends FormattingDiagnosticHandler {
     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) {
@@ -156,6 +172,10 @@ class CollectingDiagnosticHandler extends FormattingDiagnosticHandler {
       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);
   }
 }