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// |reftest| error:SyntaxError
// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 14.2.1
description: >
ArrowParameters[Yield] :
...
CoverParenthesizedExpressionAndArrowParameterList[?Yield]
CoverParenthesizedExpressionAndArrowParameterList, refined by:
ArrowFormalParameters[Yield, GeneratorParameter] :
( StrictFormalParameters[?Yield, ?GeneratorParameter] )
ObjectBindingPattern
BindingPropertyList
No duplicates
negative:
phase: parse
type: SyntaxError
---*/
$DONOTEVALUATE();
var af = ({x}, {y: x}) => 1;