return '#<Hash:{' + this.map(function(pair) { return pair.map(Object.inspect).join(': '); }).join(', ') + '}>'; 
return this.inject([], function(array, value) { return array.include(value) ? array : array.concat([value]); }); 
    return '#<Hash:{' + this.map(function(pair) {      return pair.map(Object.inspect).join(': ');    }).join(', ') + '}>';
6445	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/6445/81ea0800bc8ad92d491743716cd489cad7333723/prototype.js/buggy/vendor/rails/actionpack/lib/action_view/helpers/javascripts/prototype.js