rem: return {start: lastDot+1, end: expr.length-1}; 
add: return {start: lastDot+1, end: expr.length-1}; 
context: function getDot(expr, offset){    var lastDot = expr.lastIndexOf(".");    if (lastDot == -1)        return null;    else        return {start: lastDot+1, end: expr.length-1}; }
meta: 7450	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/7450/856922939002b0d3462c04ce77a6e2ad91741388/commandLine.js/buggy/extension/content/firebug/commandLine.js