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

third_party/closure_compiler/compiler_customization_test.py

Index: third_party/closure_compiler/compiler_customization_test.py
diff --git a/third_party/closure_compiler/compiler_customization_test.py b/third_party/closure_compiler/compiler_customization_test.py
index e1ad681527be7bc1238ebeb2d0b83ba2e0288c8d..03118eb6ef876cddfb7cdaa52e7ed34d5dfea5a6 100755
--- a/third_party/closure_compiler/compiler_customization_test.py
+++ b/third_party/closure_compiler/compiler_customization_test.py
@@ -187,6 +187,13 @@ needsNumber(new Class().booleanProp);
 """, expected_error="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()