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
* @throws Exception
	 */
	public void testSerializeWithElementExtends( ) throws Exception
	{
		openDesign( DESIGN_WITH_ELEMENT_EXTENDS );
		assertNotNull( designHandle );
		serializeNonLineBreakDocument( );
		assertTrue( compareFile( "DocumentUtilTest_golden.xml" ) );  
	}
	/**
	 * Tests the lib reference of embedded images.
	 * 
	 * @throws Exception
	 */
	public void testSerializeWithLibReference( ) throws Exception
	{
		openDesign( DESIGN_WITH_STRUCTURE_REFERENCE );
		assertNotNull( designHandle );
		serializeDocument( );
		assertTrue( compareFile( "DocumentUtilTest_golden_1.xml" ) ); 
	}
	/**
	 * Tests the indirect element references by inheritances during the
	 * serialization.
	 * 
	 * @throws Exception
	 */
	public void testSerializeWithIndirectRef( ) throws Exception
	{
		openDesign( DESIGN_WITH_INDIRECT_REFERENCE );