v8/test/mjsunit/regress/regress-preparse-inner-arrow-duplicate-parameter.js

// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

assertThrows("()=>{ (x,x)=>1 }", SyntaxError)
[parser] Rewrite duplicate formal detection Now duplicate parameter detection depends on tracking of unresolved references. This also fixes finding duplicate parameters of arrow functions nested in other arrow functions. Change-Id: I644bfdc513244637345c1069e5c7e5fde713da63 Reviewed-on: https://chromium-review.googlesource.com/c/1270578 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Marja Hölttä <marja@chromium.org> Cr-Commit-Position: refs/heads/master@{#56467} 2018-10-09 08:35:05 +00:00			`// Copyright 2018 the V8 project authors. All rights reserved.`
			`// Use of this source code is governed by a BSD-style license that can be`
			`// found in the LICENSE file.`

			`assertThrows("()=>{ (x,x)=>1 }", SyntaxError)`