michael@0: 
michael@0: /* Don't confuse JIT code by making slow arrays that use inline slots inconsistently. */
michael@0: 
michael@0: function foo(a)
michael@0: {
michael@0:   assertEq(a.x, 5);
michael@0: }
michael@0: 
michael@0: function bar()
michael@0: {
michael@0:   for (var i = 0; i < 50; i++) {
michael@0:     var a = [];
michael@0:     a[i] = 0;
michael@0:     delete a[i];
michael@0:     a.x = 5;
michael@0:     foo(a);
michael@0:   }
michael@0: 
michael@0:   var b = [1,,2,,3,,4,,5];
michael@0:   assertEq(b.toString(), "1,,2,,3,,4,,5");
michael@0:   b.x = 0;
michael@0:   assertEq(b.toString(), "1,,2,,3,,4,,5");
michael@0:   delete b.x;
michael@0:   delete b[8];
michael@0:   delete b[6];
michael@0:   delete b[4];
michael@0:   assertEq(b.toString(), "1,,2,,,,,,");
michael@0: }
michael@0: bar();