When no arguments are given to `new Function()`, it should be treated as
a regular anonymous function (http://es5.github.io/#x15.3.2.1)
}).transform(compressor);
break;
case "Function":
+ // new Function() => function(){}
+ if (self.args.length == 0) return make_node(AST_Function, self, {
+ argnames: [],
+ body: []
+ });
if (all(self.args, function(x){ return x instanceof AST_String })) {
// quite a corner-case, but we can handle it:
// https://github.com/mishoo/UglifyJS2/issues/203