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
return status;
			}
		}
		return Status.OK_STATUS;
	}
	/**
	 * Return the destination path that should be used to move or copy the
	 * specified resource. This path is relative to the workspace.
	 * 
	 * @param resource
	 *            the resource being moved or copied
	 * @param index
	 *            the integer index of the resource in the resource array
	 * @return the path specifying the destination for the resource
	 */
	protected IPath getDestinationPath(IResource resource, int index) {
		if (destinationPaths != null) {
			return destinationPaths[index];
		}
		return destination.append(resource.getName());
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.ide.undo.AbstractWorkspaceOperation#appendDescriptiveText(java.lang.StringBuffer)
	 */
	protected void appendDescriptiveText(StringBuffer text) {
		super.appendDescriptiveText(text);
		text.append(" destination: "); 
		text.append(destination);