v8/test/mjsunit/regress/regress-builtin-array-op.js

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// Test that we invoke the correct sort function in
// array operations.

var foo =  "hest";
Array.prototype.sort = function(fn) { foo = "fisk"; };
Function.prototype.call = function() { foo = "caramel"; };
var a = [2,3,1];
a[100000] = 0;
a.join();
assertEquals("hest", foo);