8023368: Instance __proto__ property should exist and be writable.
Reviewed-by: attila, hannesw
/*
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/**
* NASHORN-168 : Object.prototype.toString does not work as per the spec.
*
* @test
* @run
*/
function printToString(obj) {
print(Object.prototype.toString.call(obj));
}
printToString(null);
printToString(undefined);
(function () {
printToString(arguments);
})();
printToString([]);
printToString(new Boolean(false));
printToString(new Date(0));
printToString(Object);
printToString(JSON);
printToString(Math);
printToString(new Number(0));
printToString({});
printToString(/js/);
printToString(new String(''));
// check the primitives too
printToString(false);
printToString(3.14);
printToString('js');