Bug 310494 [LinkedResources] Preference "Link and create virtual folders" does not work
I20100425-2000 The 2 options on the Linked Resourced with name "Link and create virtual folders" don't work. When they are selected, dropping items does nothing. In CopyFilesAndFoldersOperation#copyOrLinkFiles(..), the test "hasFlag(dropOperation, ImportTypeDialog.IMPORT_VIRTUAL_FOLDERS_AND_LINKS)" always fails because dropOperation is always COPY.
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/actions/CopyFilesAndFoldersOperation.java
* @param source
	 *            source resource
	 * @return IResource file or folder handle, depending on the source type.
	 */
	IResource createLinkedResourceHandle(IContainer destination,
			IResource source) {
		IWorkspace workspace = destination.getWorkspace();
		IWorkspaceRoot workspaceRoot = workspace.getRoot();
		IPath linkPath = destination.getFullPath().append(source.getName());
		IResource linkHandle;
		if (source.getType() == IResource.FOLDER) {
			linkHandle = workspaceRoot.getFolder(linkPath);
		} else {
			linkHandle = workspaceRoot.getFile(linkPath);
		}
		return linkHandle;
	}
	/**
	 * Removes the given resource from the workspace.
	 * 
	 * @param resource
	 *            resource to remove from the workspace
	 * @param monitor
	 *            a progress monitor for showing progress and for cancelation
	 * @return true the resource was deleted successfully false the resource was
	 *         not deleted because a CoreException occurred
	 */
	boolean delete(IResource resource, IProgressMonitor monitor) {
		boolean force = false; 
		if (resource.getType() == IResource.PROJECT) {