fixes #40, extension methods for primitive types

test/codegen/expect/html_input.html

Index: test/codegen/expect/html_input.html
diff --git a/test/codegen/expect/html_input.html b/test/codegen/expect/html_input.html
index b8057457974c8b30b473cec857373595ab4a6fdb..6b5db9e5cd5dbc22500638903e56621f303997ec 100644
--- a/test/codegen/expect/html_input.html
+++ b/test/codegen/expect/html_input.html
@@ -14,7 +14,9 @@
 <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="dev_compiler/runtime/dart/_interceptors.js"></script>
 <script src="dev_compiler/runtime/dart/convert.js"></script>
+<script src="dev_compiler/runtime/dart/_native_typed_data.js"></script>
 <script src="dir/html_input_d.js"></script>
 <script src="dir/html_input_b.js"></script>
 <script src="dir/html_input_e.js"></script>