Initial cut for a development server

test/codegen/expect/dir/html_input_d.js

Index: test/codegen/expect/dir/html_input_d.js
diff --git a/test/codegen/expect/dir/html_input_d.js b/test/codegen/expect/dir/html_input_d.js
index 8e9da1f7ddebdfa082a0d89c4961b4260a81a321..cecfc8fb81b46fc0c346a2b13103a9173fbdd522 100644
--- a/test/codegen/expect/dir/html_input_d.js
+++ b/test/codegen/expect/dir/html_input_d.js
@@ -3,16 +3,7 @@ var html_input_d;
   'use strict';
   // Function fib: (int) → int
   function fib(n) {
-    return _fib(n, new core.Map());
-  }
-  // Function _fib: (int, Map<int, int>) → int
-  function _fib(n, seen) {
-    if (n === 0 || n === 1)
-      return 1;
-    if (seen.get(n) !== null)
-      return seen.get(n);
-    seen.set(n, dart.notNull(_fib(dart.notNull(n) - 1, seen)) + dart.notNull(_fib(dart.notNull(n) - 2, seen)));
-    return seen.get(n);
+    return n === 0 || n === 1 ? 1 : dart.notNull(fib(dart.notNull(n) - 1)) + dart.notNull(fib(dart.notNull(n) - 2));
   }
   // Exports:
   exports.fib = fib;