text: load("bf4b12814bc95f34eeb130127d8438ab.js");
  load("93fae755edd261212639eed30afa2ca4.js");
  // 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: early
    type: SyntaxError
  ---*/
  var af = ({x}, {y: x}) => 1;
  