Handle cr.exportPath() in compiler pass, declare every object only once

third_party/closure_compiler/compiler_customization_test.py

 #!/usr/bin/env python
 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import os
 import unittest
 
 from checker import Checker
 from processor import FileCache, Processor
@@ skipping 169 matching lines @@
 
 cr.defineProperty(Class.prototype, 'booleanProp', cr.PropertyKind.BOOL_ATTR);
 
 /** @param {number} num */
 function needsNumber(num) {}
 
 needsNumber(new Class().booleanProp);
 """, "ERROR - actual parameter 1 of needsNumber does not match formal "
         "parameter")
 
+  def testCrDefineOnCrWorks(self):
+    self._runCheckerTestExpectSuccess(self._CR_DEFINE_DEFINITION + """
+cr.define('cr', function() {
+  return {};
+});
+""")
+
 
 if __name__ == "__main__":
   unittest.main()