this code is shite. don't use it.js

//! ==UserScript==
//! @include http://*
//! ==/UserScript==

(function(slice, toString, filter) {
  // opera bug - DSK-259939
  var buggy = filter.call('fPaAiSlS', function(c) { return 'fail'.indexOf(c) == -1; }).join('') != 'PASS';
  
  function addGenerics(klass, methods) {
    var fn;
    methods.forEach(function(name) {
      if ((fn = klass.prototype[name]) && !klass[name]) {
        klass[name] = (function() {
          return function(obj) {
            //opera.postError([fn,obj,toString.call(this),toString.call(obj),slice.call(arguments, 1)].join('\n'));
            return fn.apply(
              (buggy && (klass == Array) && (toString.call(obj) == '[object String]')
                ? obj.split('')
                : obj
              )
              ,slice.call(arguments, 1)
            );
          };
        })();
      }
    });
  }
  
  addGenerics(Array, 'every filter forEach map reduce reduceRight slice some'.split(' '));
  addGenerics(String, 'replace substr'.split(' '));

  if (!('name' in Function.prototype)) {
    Function.prototype.__defineGetter__('name', function() {
      return this.toString().match(/function\s+([^\s\(]+)/) ? RegExp.$1 : 'anonymous';
    });
    Function.prototype.__defineSetter__('name', function(readonly) { });
  }
})(Array.prototype.slice, Object.prototype.toString, Array.prototype.filter);