New expectation functions plus convert old tests to use these.

tests/isolate/v2_unresolved_ports_test.dart

Index: tests/isolate/v2_unresolved_ports_test.dart
===================================================================
--- tests/isolate/v2_unresolved_ports_test.dart	(revision 8345)
+++ tests/isolate/v2_unresolved_ports_test.dart	(working copy)
@@ -34,10 +34,10 @@
   test('Message chain with unresolved ports', () {
     ReceivePort port = new ReceivePort();
     port.receive(expectAsync2((msg, _) {
-      expect(msg).equals('main says: Beth, find out if Tim is coming.'
+      expect(msg, equals('main says: Beth, find out if Tim is coming.'
         '\nBeth says: Tim are you coming? And Bob?'
         '\nTim says: Can you tell "main" that we are all coming?'
-        '\nBob says: we are all coming!');
+        '\nBob says: we are all coming!'));
       port.close();
     }));