8023368: Instance __proto__ property should exist and be writable.
Reviewed-by: attila, hannesw
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/**
* NASHORN-111 : ClassCastException from JSON.stringify
*
* @test
* @run
*/
// problem 1
// the conversions in TernaryNode are not necessary, but they should not cause problems. They did
// this was because the result of Global.allocate(Object[])Object which returns a NativeObject.
// was tracked as an object type on our stack. The type system did not recognize this as an array.
// Then the explicit conversions became "convert NativeArray->Object[]" which is a checkccast Object[]
// which naturally failed.
// I pushed the appropriate arraytype on the stack for Global.allocate.
// I also removed the conversions in CodeGen, all conversions should be done in Lower, as
// NASHORN-706 states.
var silent = false;
var stdio = silent ? ['pipe', 'pipe', 'pipe', 'ipc'] : [0, 1, 2, 'ipc'];
// This made the test pass, but it's still not correct to pick widest types for array
// and primitives. Widest(Object[], int) gave us Object[] which makes no sense. This is used
// by lower to type the conversions, so function b below also failed until I made a change
// ty type widest to actually return the widest common denominator, if both aren't arrays
function b() {
var silent2 = false;
var stdio2 = silent2 ? [1,2,3] : 17;
}