fixes #131, use before define from variables to classes

test/codegen/expect/sunflower/sunflower.html

Index: test/codegen/expect/sunflower/sunflower.html
diff --git a/test/codegen/expect/sunflower/sunflower.html b/test/codegen/expect/sunflower/sunflower.html
index 1737fe53de6e1e17fb3f0ed20e0eedc19e69dad0..e0d33304ebb856bd1c222cc80060cf1c86cdeeb4 100644
--- a/test/codegen/expect/sunflower/sunflower.html
+++ b/test/codegen/expect/sunflower/sunflower.html
@@ -30,8 +30,15 @@
 <script src="dev_compiler/runtime/dart/collection.js"></script>
 <script src="dev_compiler/runtime/dart/_internal.js"></script>
 <script src="dev_compiler/runtime/dart/math.js"></script>
+<script src="dev_compiler/runtime/dart/async.js"></script>
 <script src="dev_compiler/runtime/dart/_foreign_helper.js"></script>
+<script src="dev_compiler/runtime/dart/_js_embedded_names.js"></script>
+<script src="dev_compiler/runtime/dart/_js_names.js"></script>
 <script src="dev_compiler/runtime/dart/_js_helper.js"></script>
+<script src="dev_compiler/runtime/dart/isolate.js"></script>
+<script src="dev_compiler/runtime/dart/typed_data.js"></script>
+<script src="dev_compiler/runtime/dart/_isolate_helper.js"></script>
+<script src="dev_compiler/runtime/dart/_js_primitives.js"></script>
 <script src="dom.js"></script>
 <script src="sunflower.js"></script>
 <script>sunflower.main();</script>