stylelint-bundle-worker.js
function mapVisit(nodes, fn) {
    var len = nodes.length;
    var idx = -1;
    while (++idx < len) {
      visit(nodes[idx], fn);
    }
  }
function mapVisit(nodes, fn) {
    var len = nodes.length;
    var idx = -1;
    while (++idx < len) {
      visit(nodes[idx], fn);
    }
  }
Map visit over array of `nodes`.