Debugging compiled JS. "compiled"; on first line, but board warns that it's not compiled

It's because it only recognizes basic function declarations (not function expressions). Try:

function dotwinkle(ths) {
    "compiled";
  // replace 'this' with 'ths'
}

leds.dotwinkle = function() {
  dotwinkle(this);
}

You'll also have to pass in 'this' as an argument, as it doesn't handle it properly otherwise.