rem: this.filename     = filename || ''; 
add: this.filename     = filename || '<vm>'; 
context:     init: function(src, filename, generateSourceMap, lineOffset) {        this.filename     = filename || '';        this.lineOffset   = (lineOffset || 0);        this.src          = src;        this.columnsTrace = [];        this.program      = [];        this.parser       = new cor.Parser();        this.parser.yy    = yy;        if (generateSourceMap) {            this.sourceMap = new cor.SourceMap();        }        this.env = yy.env = new cor.yy.Environment(this.filename);        this.setup();    },
meta: 1103	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1103/d810a01f27a7533dbafe92c103eed095cb6618bc/compiler.js/clean/src/compiler.js