Move sunflower to a new directory, make final tweaks to make it all work.

test/codegen/sunflower/sunflower.html

Index: test/codegen/sunflower/sunflower.html
diff --git a/test/sunflower/sunflower.html b/test/codegen/sunflower/sunflower.html
similarity index 67%
rename from test/sunflower/sunflower.html
rename to test/codegen/sunflower/sunflower.html
index 321b12af8d4c67e07098081ffb07a6790a49349c..2e2da2a1de3e8c73c85ec7f9877db9db9faa4165 100644
--- a/test/sunflower/sunflower.html
+++ b/test/codegen/sunflower/sunflower.html
@@ -28,15 +28,6 @@
       <p id="notes"> </p>
     </footer>
 
-    <script src="../../lib/runtime/harmony_feature_check.js"></script>
-    <script>
-      // TODO(jmesserly): some hacks here to get the output running
-      var math = Math;
-      var core = { int: { parse: Number } };
-      var dom = { document: document };
-    </script>
-    <script src="../../lib/runtime/dart_runtime.js"></script>
-    <script src="../codegen/expect/sunflower.js"></script>
-    <script>sunflower.main();</script>
+    <script type="application/dart" src="sunflower.dart"></script>
   </body>
 </html>