Bug 130091 [regression]Save button failed after edit script in data item.
Description: Save button failed after edit script in data item. Steps to reproduce: 1. New a report 2. Insert a data item and input "data". 3. Select data item and transfer to script pane, input some words. 4. Transfer back to Layout and save the report. Expected result: Save action works. Actual result: Save action failed.
UI/org.eclipse.birt.report.designer.ui.ide/src/org/eclipse/birt/report/designer/ui/editors/ReportEditorProxy.java
IPartListener,
		IPropertyListener,
		IReportEditor
{
    
	MultiPageReportEditor instance;
	private String title = "";
	public IEditorInput getEditorInput( )
	{
		return instance.getEditorInput( );
	}
	public IEditorSite getEditorSite( )
	{
		return instance.getEditorSite( );
	}