1 // Copyright 2015 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Flags: --allow-natives-syntax 6 7 function bar(a) { 8 delete a[1]; 9 } 10 11 function foo(a) { 12 var d; 13 for (d in a) { 14 assertFalse(d === undefined); 15 bar(a); 16 } 17 } 18 19 foo([1,2]); 20 foo([2,3]); 21 %OptimizeFunctionOnNextCall(foo); 22 foo([1,2]); 23
