Deferred loading track type-dependencies for is, as and type-annotations.

tests/language/deferred_type_dependency_lib1.dart

Index: tests/language/deferred_type_dependency_lib1.dart
diff --git a/tests/language/deferred_type_dependency_lib1.dart b/tests/language/deferred_type_dependency_lib1.dart
new file mode 100644
index 0000000000000000000000000000000000000000..9eac3734bdbb340eb3928d7e089981c933ef908d
--- /dev/null
+++ b/tests/language/deferred_type_dependency_lib1.dart
@@ -0,0 +1,28 @@
+// Copyright (c) 2015, the Dart Team. All rights reserved. Use of this
+// source code is governed by a BSD-style license that can be found in
+// the LICENSE file.
+
+library lib1;
+
+import "deferred_type_dependency_test.dart";
+
+bool fooIs(x) {
+  return x is A;
+}
+
+bool fooAs(x) {
+  try {
+    return (x as A).p;
+  } on CastError catch (e) {
+    return false;
+  }
+}
+
+bool fooAnnotation(x) {
+  try {
+    A y = x;
+    return y is! String;
+  } on TypeError catch (e) {
+    return false;
+  }
+}