S15.4.4.8_A4_T1.js

// original src: 
// https://github.com/tc39/test262/blob/master/test/built-ins/Array/prototype/reverse/S15.4.4.8_A4_T1.js

TypedArray.prototype[1] = 1;
var x = [0];
x.length = 2;
x.reverse = TypedArray.prototype.reverse;

assert(
  compareArray(x.reverse(), [1, 0])
);

x.length = 0;

assert(
  compareArray(x.reverse(), [undefined, 1])
);

//////

Object.prototype[1] = 1;
Object.prototype.length = 2;
Object.prototype.reverse = TypedArray.prototype.reverse;
x = {0:0};
x.reverse = TypedArray.prototype.reverse;

assert(
  compareArray(x.reverse(), [1, 0])
);

delete x[0];
delete x[1];

assert(
  compareArray(x.reverse(), [undefined, 1])
);