Insert checks before deferred calls and accesses.

tests/lib/async/deferred/deferred_api_test.dart

Index: tests/lib/async/deferred/deferred_api_test.dart
diff --git a/tests/lib/async/deferred/deferred_api_test.dart b/tests/lib/async/deferred/deferred_api_test.dart
index f138935434b82f9316e831e105627acc211624af..18eaf2258dbf30b3d4c31d034da038025629082f 100644
--- a/tests/lib/async/deferred/deferred_api_test.dart
+++ b/tests/lib/async/deferred/deferred_api_test.dart
@@ -20,15 +20,13 @@ main() {
   print('unittest-suite-wait-for-done');
 
   int counter = 0;
-  lazy.load().then((bool didLoad) {
-    Expect.isTrue(didLoad);
+  lazy.load().then((_) {

[Johnni Winther, 2014/04/11 07:34:54]

Why this change?

[sigurdm, 2014/04/11 09:11:38]

I removed the bool from the future in a previous CL. Why it has not been
triggered before is a mystery.

     Expect.equals(1, ++counter);
     Expect.equals(42, lib.foo('b'));
     print('lazy was loaded');
   });
   Expect.equals(0, counter);
-  lazy.load().then((bool didLoad) {
-    Expect.isFalse(didLoad);
+  lazy.load().then((_) {
     Expect.equals(2, ++counter);
     Expect.equals(42, lib.foo('b'));
     print('lazy was loaded');