Back out 97036ab72558 which inappropriately compared turds to third parties.
1 // No 'arguments' binding in genexprs at toplevel.
3 load(libdir + "asserts.js");
5 delete this.arguments; // it is defined in the shell
6 var iter = (arguments for (x of [1]));
7 assertThrowsInstanceOf(() => iter.next(), ReferenceError);