JSTests/test262/test/language/statements/class/subclass/superclass-prototype-setter-method-override.js

// Copyright (C) 2014 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 14.5
description: >
    superclass prototype override
---*/
function Base() {}

Base.prototype = {
  set m(_) {
    $ERROR("`Base.prototype.m` is unreachable.");
  }
};

class C extends Base {
  m() {
    return 1;
  }
}

assert.sameValue(new C().m(), 1, "`new C().m()` returns `1`");