[birt-dev]CheckIn: Fix unitTest failed.

["Wei Zhao \(Shang\)" <wei.zhao@xxxxxxxxxxx>]

Title: [birt-dev]CheckIn: Fix unitTest failed.

- Summary:
Fix unitTest failed.

- Bugzilla Bug (s) Resolved:
None.

- Description:
Fix unitTest failed.

- Tests Description  :
Unit Test

- Notes to Build Team:

- Notes to Developers:

- Notes to QA:  
 
- Notes to Documentation:  

- Files Edited:
"/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/executor/ListingElementExecutor.java"
"/org.eclipse.birt.report.engine.tests/test/org/eclipse/birt/report/engine/ir/ir_io_test_V1.golden"
"/org.eclipse.birt.report.engine.tests/test/org/eclipse/birt/report/engine/ir/ir_io_test_V2.golden"

- Files Added:

- Files Deleted

-Wei Zhao(Shanghai)