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

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 ef76922ad732303df14cfac28628f3285d3c66e7..70d575f07cdb37e9d87800649bd30cfe584333f5 100644
--- a/test/codegen/expect/html_input.html
+++ b/test/codegen/expect/html_input.html
@@ -2,11 +2,7 @@
 <script src="dev_compiler/runtime/harmony_feature_check.js"></script>
 <script src="dev_compiler/runtime/dart_runtime.js"></script>
 <script src="dev_compiler/runtime/dart_core.js"></script>
-<script>
-  /* placehorder for unimplemented code libraries */
-  var math = Math;
-  var core = { int: { parse: Number }, print: e => console.log(e) };
-</script><script src="dir/html_input_d.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>
 <script src="dir/html_input_c.js"></script>