Report info messages together with their error, warning, or hint.

tests/compiler/dart2js/analyze_unused_dart2js_test.dart

Index: tests/compiler/dart2js/analyze_unused_dart2js_test.dart
diff --git a/tests/compiler/dart2js/analyze_unused_dart2js_test.dart b/tests/compiler/dart2js/analyze_unused_dart2js_test.dart
index 10fc5a594476a96a9f3536a2cc6b00fa81a65cf4..8f9e96729a299ff83c580e281ec025acd7937b62 100644
--- a/tests/compiler/dart2js/analyze_unused_dart2js_test.dart
+++ b/tests/compiler/dart2js/analyze_unused_dart2js_test.dart
@@ -81,20 +81,23 @@ bool checkResults(Compiler compiler, CollectingDiagnosticHandler handler) {
   void checkLive(member) {
     if (member.isFunction) {
       if (compiler.enqueuer.resolution.hasBeenResolved(member)) {
-        compiler.reportHint(member, MessageKind.GENERIC,
-            {'text': "Helper function in production code '$member'."});
+        compiler.reportHint(compiler.createMessage(
+            member, MessageKind.GENERIC,
+            {'text': "Helper function in production code '$member'."}));
       }
     } else if (member.isClass) {
       if (member.isResolved) {
-        compiler.reportHint(member, MessageKind.GENERIC,
-            {'text': "Helper class in production code '$member'."});
+        compiler.reportHint(compiler.createMessage(
+            member, MessageKind.GENERIC,
+            {'text': "Helper class in production code '$member'."}));
       } else {
         member.forEachLocalMember(checkLive);
       }
     } else if (member.isTypedef) {
       if (member.isResolved) {
-        compiler.reportHint(member, MessageKind.GENERIC,
-            {'text': "Helper typedef in production code '$member'."});
+        compiler.reportHint(compiler.createMessage(
+            member, MessageKind.GENERIC,
+            {'text': "Helper typedef in production code '$member'."}));
       }
     }
   }