fixes #131, use before define from variables to classes

test/codegen/expect/misc.js

Index: test/codegen/expect/misc.js
diff --git a/test/codegen/expect/misc.js b/test/codegen/expect/misc.js
index a59fd6cb1b4b14a1537ff45ce995470c73859096..9c4419fb6307c623f1d0d0cde1020d5ffcd0b139 100644
--- a/test/codegen/expect/misc.js
+++ b/test/codegen/expect/misc.js
@@ -2,6 +2,11 @@ var misc = dart.defineLibrary(misc, {});
 var core = dart.import(core);
 (function(exports, core) {
   'use strict';
+  class _Uninitialized extends core.Object {
+    _Uninitialized() {
+    }
+  }
+  let UNINITIALIZED = dart.const(new _Uninitialized());
   // Function main: () → dynamic
   function main() {
     core.print(dart.toString(1));
@@ -9,5 +14,6 @@ var core = dart.import(core);
     core.print(dart.toString(1.1));
   }
   // Exports:
+  exports.UNINITIALIZED = UNINITIALIZED;
   exports.main = main;
 })(misc, core);