Bug 130495 Get rid of SessionHandleAdapter
Now, we use SessionHandleAdapter to keep current active report deisng. That's a bad practive for editor swith and rebuild will cuase lots of problmes. Need find way to replace it.
UI/org.eclipse.birt.report.designer.ui.editors.schematic/src/org/eclipse/birt/report/designer/ui/editors/pages/ReportScriptFormPage.java
/* (non-Javadoc)
	 * @see org.eclipse.ui.part.EditorPart#doSaveAs()
	 */
	public void doSaveAs( )
	{
		IReportProvider provider = EditorUtil.getReportProvider( this, getEditorInput( ) );
		if ( provider != null )
		{
			IPath path = provider.getSaveAsPath( getEditorInput( ) );
			final IEditorInput input = provider.createNewEditorInput( path );
			setInput( input );
			IRunnableWithProgress op = new IRunnableWithProgress( ) {
				public synchronized final void run( IProgressMonitor monitor )
						throws InvocationTargetException, InterruptedException
				{
					final InvocationTargetException[] iteHolder = new InvocationTargetException[1];
					try
					{
						IWorkspaceRunnable workspaceRunnable = new IWorkspaceRunnable( ) {
							public void run( IProgressMonitor pm )
									throws CoreException
							{
								try
								{
									execute( pm );
								}
								catch ( InvocationTargetException e )
								{
									
									iteHolder[0] = e;