Bug 176764 [Undo] - DeleteResourcesOperation does not handle overlapped selections
In a project, create a folder f1. In f1, create another folder f2. Select f1 and f2 delete The undo fails with a "not enough info to restore" message. The problem is that the resource description for f2 checks to see whether f2's parent is valid, and at the time of the check, f1 has not been restored. Either the validity check needs to be smarter, or else the deletes should be collapsed into just f1.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/ide/undo/AbstractCopyOrMoveResourcesOperation.java
AbstractResourcesOperation {
	
	protected IPath[] destinationPaths = null;
	
	protected IPath destination = null;
	/**
	 * Create an AbstractCopyOrMoveResourcesOperation that moves or copies all
	 * of the specified resources to the specified paths. The destination paths
	 * must include the names of the resources at their new location.
	 * 
	 * @param resources
	 *            the resources to be moved or copied.  May not contain null
	 *            resources.
	 * @param destinationPaths
	 *            the destination paths for the resources, including the name to
	 *            be assigned to the resource at its new location.  May not contain
	 *            null paths, and must be the same length as the resources array.
	 * @param label
	 *            the label of the operation
	 *            
	 */
	AbstractCopyOrMoveResourcesOperation(IResource[] resources,
			IPath[] destinationPaths, String label) {
		super(resources, label);