Bug 182053 [Automation][Regression] Visibility does not work properly in html and viewer
steps to reproduce: - create a report - add any report item - hide this report item in pdf - preview in html and viewer expected behavior: - this report item should be shown actual behavior: - this report item was not shown
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/emitter/ContentEmitterUtil.java
{
	static IContentVisitor starter = new StartContentVisitor( );
	static IContentVisitor ender = new EndContentVisitor( );
	static public void startContent( IContent content, IContentEmitter emitter )
	{
		String vformat = content.getStyle( ).getVisibleFormat( );
		
		if ( vformat == null )
		{
			starter.visit( content, emitter );
		}
		else