public TypeHierarchyTransferDropAdapter(TypeHierarchyViewPart viewPart, StructuredViewer viewer) { super(viewer,  DND.FEEDBACK_SCROLL | DND.FEEDBACK_EXPAND);
public TypeHierarchyTransferDropAdapter(TypeHierarchyViewPart viewPart, AbstractTreeViewer viewer) { super(viewer);
	public TypeHierarchyTransferDropAdapter(TypeHierarchyViewPart viewPart, StructuredViewer viewer) {		super(viewer,  DND.FEEDBACK_SCROLL | DND.FEEDBACK_EXPAND);		fTypeHierarchyViewPart= viewPart;	}