Dart2js deferred loading. Follow types of functions when calculating dependencies.

tests/language/deferred_regression_22995_lib.dart

Index: tests/language/deferred_regression_22995_lib.dart
diff --git a/tests/html/deferred_multi_app_lib.dart b/tests/language/deferred_regression_22995_lib.dart
similarity index 70%
copy from tests/html/deferred_multi_app_lib.dart
copy to tests/language/deferred_regression_22995_lib.dart
index 6ec352d4a43cf336d85abaf9ebc816150ef0d007..d4efaf666e7e8e26947bf1fb126b806c39e4656f 100644
--- a/tests/html/deferred_multi_app_lib.dart
+++ b/tests/language/deferred_regression_22995_lib.dart
@@ -2,10 +2,10 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-one() {
-  return "one";
-}
+import 'deferred_regression_22995_test.dart';
 
-two() {
-  return "two";
-}
+foofoo() {
+  new A();
+  new B();
+  new C();
+}