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.editors.schematic/src/org/eclipse/birt/report/designer/ui/editors/pages/ReportScriptFormPage.java
{
			provider.saveReport( getReportModel( ), getEditorInput( ), monitor );
			firePropertyChange( PROP_DIRTY );
		}
		markPageStale( IPageStaleType.NONE );
		getEditor( ).editorDirtyStateChanged( );
	}
	/**
	 * @return
	 */
	protected ModuleHandle getReportModel( )
	{
		if ( model == null )
		{
			IReportProvider provider =  getProvider( );
			if ( provider != null )
			{
				model = provider.getReportModuleHandle( getEditorInput( ) );
			}
		}
		return model;
	}
	/* (non-Javadoc)
	 * @see org.eclipse.ui.part.EditorPart#doSaveAs()
	 */
	public void doSaveAs( )
	{
		IReportProvider provider =  getProvider( );
		if ( provider != null )
		{