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.ide/src/org/eclipse/birt/report/designer/ui/editors/ReportEditorProxy.java
public Object getAdapter( Class adapter )
	{
		return instance.getAdapter( adapter );
	}
	public void doSave( IProgressMonitor monitor )
	{
		instance.doSave( monitor );
		firePropertyChange( PROP_DIRTY );
	}
	public void doSaveAs( )
	{
		instance.doSaveAs( );
		IReportProvider provider = EditorUtil.getReportProvider( this,
				getEditorInput( ) );
		if ( provider != null )
		{
			setPartName( provider.getInputPath( getEditorInput( ) )
					.lastSegment( ) );
		}
		firePropertyChange( PROP_DIRTY );
	}
	public boolean isDirty( )
	{
		return instance.isDirty( );
	}
	public boolean isSaveAsAllowed( )
	{
		return instance.isSaveAsAllowed( );
	}
	public boolean isSaveOnCloseNeeded( )