Bug 205709 Translation table is missed when report design is flattened
It happens when a report design with a localization property file and some library (otherwise it's not flattened!) is executed. Such report document has no transaltion table and then can not be localized. The problem is in org.eclipse.birt.report.model.util.ReportDesignSerializer#visitReportDesign which does not copy the translation table from ReportDesignSerializer#sourceDesign to ReportDesignSerializer#targetDesign.
model/org.eclipse.birt.report.model.tests/test/org/eclipse/birt/report/model/writer/DocumentUtilTest.java
assertTrue( compareFile( "DocumentUtilTest_extends_cube_golden.xml" ) ); 
	}
	/**
	 * In the getPropertyFromElement() call of the
	 * ReportDesignSerializer.localizePropertyValues(), the module should be
	 * element.getRoot() instead of targetDesign. Otherwise, some elements
	 * cannot be resolved. It could caused preview failure.
	 * 
	 * @throws Exception
	 */
	public void testCubeAndCrosstable1( ) throws Exception
	{
		openDesign( DESIGN_WITH_TESTING_TABLE_EXTENDS );
		serializeDocument( );
		assertTrue( compareFile( "DocumentUtilTest_extends_testingtable_golden.xml" ) ); 
	}
	/**
	 * For content elements, they should be serialized.
	 * 
	 * @throws Exception
	 */
	public void testFilterElement( ) throws Exception
	{
		openDesign( DESIGN_WITH_FILTER_ELEMENT );
		serializeDocument( );
		assertTrue( compareFile( "DocumentUtilTest_filter_element_golden.xml" ) ); 
	}
	/**
	 * For css styles, they must be visited and saved in the serialized design.
	 *