test262/test/annexB/language/statements/for-in/const-initializer.js

// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-initializers-in-forin-statement-heads
description: >
    for-in initializers with const are prohibited
negative:
  phase: early
  type: SyntaxError
---*/

throw "Test262: This statement should not be evaluated.";
throw NotEarlyError;
for (const a = 0 in {});