Function redefinition in vm.runInContext #548
Description
Possible bug of iojs or perhaps v8?
var vm = require('vm'), ctx = vm.createContext({});
vm.runInContext('function test(){return 0}', ctx);
vm.runInContext('function test(){return 1}', ctx);
var result = vm.runInContext('test()', ctx);
// returns 0 in io.js, but 1 in node.js
Tested under win7 x64 and linux.