Problem.js

Browser.select = function(css, val) {
  this.element(css).click();
  return this.element(css).findElements(By.css('option')).then(function(els) {
    for(var i = 0, el; el = els[i]; ++i) {
      var element = el;
      el.getText().then(function(text) {
        if(text == val) {
          element.click();
        }
      });
    }
  });
};

solution.js

Browser.select = function(css, val) {
  this.element(css).click();
  return this.element(css).findElements(By.css('option')).then(function(els) {
    for(var i = 0, el; el = els[i]; ++i) {
      var functionHandler = function(elCopy) {
        return function(text) {
          if(text == val)
            elCopy.click();
        };
      };
      el.getText().then(functionHandler(el));
    }
  });
};