Bug 296691 Change new Groups API to Virtual Resource API
If we decide that 'virtual' is the right naming for new resources concept, I will make the following changes. Add IResource#VIRTUAL flag to use in #create methods Add IResource#isVirtual indicating that a resource is virtual Remove IResource#isGroup Remove IFolder#createGroup
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/actions/CopyFilesAndFoldersOperation.java
* @since 3.2
	 */
	public void setModelProviderIds(String[] modelProviderIds) {
		this.modelProviderIds = modelProviderIds;
	}
	/**
	 * Create groups and links of the given files and folders to the
	 * destination. The current Thread is halted while the resources are copied
	 * using a WorkspaceModifyOperation. This method should be called from the
	 * UI Thread.
	 * 
	 * @param fileNames
	 *            names of the files to copy
	 * @param destination
	 *            destination to which files will be copied
	 * @see WorkspaceModifyOperation
	 * @see Display#getThread()
	 * @see Thread#currentThread()
	 * @since 3.6
	 */
	public void createGroupAndLinks(final String[] fileNames,
			IContainer destination) {
		IFileStore[] stores = buildFileStores(fileNames);
		if (stores == null) {
			return;
		}
		createGroupsAndLinks = true;
		copyFileStores(destination, stores, true, null);
	}
	/**