// 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-try-statement-static-semantics-early-errors es6id: 13.15.1 description: > It is a Syntax Error if BoundNames of CatchParameter contains any duplicate elements. negative: SyntaxError ---*/ $ERROR('This code should not be executed.'); try { } catch ([x, x]) {}