rem: this.dept = "sales"; this.quota = 100; 
add: this.dept = "sales"; this.quota = 100; 
context: function SalesPerson () {    this.dept = "sales";    this.quota = 100;}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/f5797aeb2410e2259028142b87595fe71f03e531/instanceof-002.js/buggy/js/tests/ecma_2/Expressions/instanceof-002.js