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
copyMoveOp.setCreateVirtualFolders(createVirtualFoldersAndLinks);
				copyMoveOp.setCreateLinks(createLinks);
				copyMoveOp.setRelativeVariable(relativeVariable);
			}
			PlatformUI.getWorkbench().getOperationSupport()
					.getOperationHistory().execute(op, monitor,
							WorkspaceUndoUtil.getUIInfoAdapter(messageShell));
		} catch (ExecutionException e) {
			if (e.getCause() instanceof CoreException) {
				recordError((CoreException) e.getCause());
			} else {
				IDEWorkbenchPlugin.log(e.getMessage(), e);
				displayError(e.getMessage());
			}
			return false;
		}
		return true;
	}
	/**
	 * Individually copies the given resources to the specified destination
	 * container checking for name collisions. If a collision is detected, it is
	 * saved with a new name.
	 * <p>
	 * Note: the destination container may need to be created prior to copying
	 * the resources.
	 * </p>
	 * 
	 * @param resources
	 *            the resources to copy
	 * @param destination