In my javascript I have this
loopDeLoop:
while (foo !== bar) {
switch (fubar) {
case reallyFubar:
You are using the label correctly.
JSLint is throwing a warning because labels in Javascript are horribly bad style, and JSLint wants you to know that.
To reiterate, if you use labels at all, even correctly, JSLint will give that warning.
Edit:
Looks like you might be able to disable the label warning with a -use_of_label
configuration directive.