Bug 131484 Can't not add item by click the item from palette
Details: Can't not add item Setp: 1.New a report design and open the palette. 2.Click the lable icon. 3.Move the mouse to layout and click again to add the label. Actual result: Nothing is added in layout.
UI/org.eclipse.birt.report.designer.ui.ide/src/org/eclipse/birt/report/designer/ui/editors/ReportEditorProxy.java
{
		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( )
	{