The Tor Browser / file revision

 var lfcode = new Array();

 lfcode.push("const baz = 'bar';");

 lfcode.push("2");

 lfcode.push("{ function foo() {} }");

 lfcode.push("evaluate('\

 var INVALIDATE_MODES = INVALIDATE_MODE_STRINGS.map(s => ({mode: s}));\

 function range(n, m) {}\

 function seq_scan(array, f) {}\

 function assertStructuralEq(e1, e2) {}\

 for (var i = 0, l = a.length; i < l; i++) {}\

 ');");

 lfcode.push("for (var x of Set(Object.getOwnPropertyNames(this))) {}");

 var lfRunTypeId = -1;

 while (true) {

   var file = lfcode.shift(); if (file == undefined) { break; }

   loadFile(file)

 }

 function loadFile(lfVarx) {

     try {

         if (lfVarx.substr(-3) == ".js") {}

         if (!isNaN(lfVarx)) {

             lfRunTypeId = parseInt(lfVarx);

         } else {

             switch (lfRunTypeId) {

                 case 2: new Function(lfVarx)(); break;

                 default: evaluate(lfVarx); break;

             }

        }

     } catch (lfVare) {}

 }