rem: else if (n < 0) { n = this.contexts.length + n; 
add: else if (n <= 0) { n = this.contexts.length + (n - 1); 
context:     context: function(n) {        if (isNaN(n)) {            n = this.contexts.length - 1;        }        else if (n < 0) {            n = this.contexts.length + n;        }        return this.contexts[n];    },
meta: 1103	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1103/6d99411bee725d0970a47e92d948417ea33e9d32/cor.js/buggy/dist/cor.js