Bug 153378 [Regression]Label text won't show up when the text key is not found
Steps to reproduce: 1.Add a label, set text to "aaa" 2.Add a resource file "a" to the report, add a text key "k1" which is not in the a.properties to the label 3.Preview in Web Viewer Expected result: Label display "aaa" when the text key is not found Actual result: Nothing in preview
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/util/DocumentUtil.java
*/
	static void resolveStyle( ReportDesign targetDesign, DesignElement target,
			DesignElement source )
	{
		assert targetDesign != null && target != null && source != null;
		assert target instanceof StyledElement;
		assert source instanceof StyledElement;
		Module sourceModule = source.getRoot( );
		assert sourceModule != null;
		DesignElement style = ( (StyledElement) source )
				.getStyle( sourceModule );
		
		if ( style != null && style.getRoot( ) != sourceModule )
		{
			
			( (StyledElement) target ).setStyle( null );
			localizeStyleProperties( target, style, targetDesign );
		}
		
		String selector = ( (ElementDefn) target.getDefn( ) ).getSelector( );
		if ( selector != null )
		{
			style = sourceModule.resolveElement( selector,
					Module.STYLE_NAME_SPACE, null );
			if ( style != null && style.getRoot( ) != sourceModule )
			{
				localizeStyleProperties( target, style, targetDesign );
			}
		}
	}