bug1219363.js - mozsearch

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var x = [1, 2, , 4]

x[100000] = 1;

var y = Object.create(x);

y.a = 1;

y.b = 1;

var arr = [];

for (var z in y)

    arr.push(z);

assertEq(arr.join(), "a,b,0,1,3,100000");