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 // Same thing but nested trees, each reconstructing one or more stack frames 

 // (so, several functions with loops, such that the loops end up being

 // nested though they are not lexically nested)

 function testSlowArrayPopNestedTrees() {    

     var a = [];

     for (var i = 0; i < 9; i++)

         a[i] = [0];

     a[8].__defineGetter__("0", function () { return 3.14159 });

     function child(a, i, j, k) {

         var last = 2.71828;

         for (var l = 0; l < 9; l++)

             if (i == 8 && j == 8 && k == 8)

                 last = a[l].pop();  // reenters interpreter in getter

         return last;

     }

     function parent(a, i, j) {

         var last;

         for (var k = 0; k < 9; k++)

             last = child(a, i, j, k);

         return last;

     }

     function gramps(a, i) { 

         var last;

         for (var j = 0; j < 9; j++)

             last = parent(a, i, j);

         return last;

     }

     var last;

     for (var i = 0; i < 9; i++)

         last = gramps(a, i);

     return last;

 }

 assertEq(testSlowArrayPopNestedTrees(), 3.14159);