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
op.setContext(messageShell);
		op.setCreateContainerStructure(false);
		op.setVirtualFolders(createVirtualFoldersAndLinks);
		op.setCreateLinks(createLinks);
		op.setRelativeVariable(relativeVariable);
		try {
			op.run(monitor);
		} catch (InterruptedException e) {
			return;
		} catch (InvocationTargetException e) {
			if (e.getTargetException() instanceof CoreException) {
				displayError(((CoreException) e.getTargetException())
						.getStatus());
			} else {
				display(e);
			}
			return;
		}
		
		
		IStatus status = op.getStatus();
		if (!status.isOK()) {
			if (errorStatus == null) {
				errorStatus = new MultiStatus(PlatformUI.PLUGIN_ID,
						IStatus.ERROR, getProblemsMessage(), null);
			}
			errorStatus.merge(status);
		}
	}
	/**