js/src/jit-test/tests/basic/bug827104.js


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function f() {
    var a = [];
    for (var i = 0; i < 1000; i++) {
      a.x = {}
    }
    a[i][0] = 0;
}

var e;
try {
    f();
} catch (error) {e = error;}
assertEq(e.toString(), 'TypeError: a[i] is undefined');