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

tests/compiler/dart2js/related_types.dart

Index: tests/compiler/dart2js/related_types.dart
diff --git a/tests/compiler/dart2js/related_types.dart b/tests/compiler/dart2js/related_types.dart
index 9a20d0b2bf07a506d08a08f0556491c37e73e2a4..54d9ab873b7a2e822597648b4926892215159b76 100644
--- a/tests/compiler/dart2js/related_types.dart
+++ b/tests/compiler/dart2js/related_types.dart
@@ -97,8 +97,10 @@ class RelatedTypesChecker extends TraversalVisitor<DartType, dynamic> {
   /// a hint otherwise.
   void checkRelated(Node node, DartType left, DartType right) {
     if (hasEmptyIntersection(left, right)) {
-      compiler.reportHint(
-          node, MessageKind.NO_COMMON_SUBTYPES, {'left': left, 'right': right});
+      compiler.reportHint(compiler.createMessage(
+          node,
+          MessageKind.NO_COMMON_SUBTYPES,
+          {'left': left, 'right': right}));
     }
   }