8023368: Instance __proto__ property should exist and be writable.
Reviewed-by: attila, hannesw
==== Two-way read-write instance field ====
obj1.publicInt = 13: 13
bean.publicInt: 13
bean.publicInt = 15: 15
obj1.publicInt: 15
==== Read only public instance field ====
obj1.publicFinalInt: 42
obj1.publicFinalInt = 16: 16
obj1.publicFinalInt: 42
bean.publicFinalInt: 42
==== Two-way read-write instance property ====
obj1.readWrite = 17: 17
bean.readWrite: 17
bean.readWrite = 18: 18
obj1.readWrite: 18
obj1.getReadWrite(): 18
obj1.setReadWrite(19): null
obj1.readWrite: 19
bean.readWrite: 19
==== Read only instance property ====
obj1.readOnly: 123
obj1.readOnly = 20: 20
obj1.readOnly: 123
obj1.getReadOnly(): 123
bean.getReadOnly(): 123
==== Write only instance property ====
obj1.writeOnly = 21: 21
obj1.writeOnly: undefined
bean.writeOnly: undefined
bean.peekWriteOnly(): 21
==== Two-way read-write public static field ====
obj2.publicStaticInt = 22: 22
PropertyBind.publicStaticInt: 22
PropertyBind.publicStaticInt = 23: 23
obj2.publicStaticInt: 23
==== Read only public static field ====
obj2.publicStaticFinalInt: 2112
obj2.publicStaticFinalInt = 24: 24
obj2.publicStaticFinalInt: 2112
PropertyBind.publicStaticFinalInt: 2112
==== Two-way read-write static property ====
obj2.staticReadWrite = 25: 25
PropertyBind.staticReadWrite: 25
PropertyBind.staticReadWrite = 26: 26
obj2.staticReadWrite: 26
obj2.getStaticReadWrite(): 26
obj2.setStaticReadWrite(27): null
obj2.staticReadWrite: 27
PropertyBind.staticReadWrite: 27
==== Read only static property ====
obj2.staticReadOnly: 1230
obj2.staticReadOnly = 28: 28
obj2.staticReadOnly: 1230
obj2.getStaticReadOnly(): 1230
PropertyBind.getStaticReadOnly(): 1230
==== Write only static property ====
obj2.staticWriteOnly = 29: 29
obj2.staticWriteOnly: undefined
PropertyBind.staticWriteOnly: undefined
PropertyBind.peekStaticWriteOnly(): 29
==== Sanity check to ensure property values remained what they were ====
obj1.publicInt: 15
bean.publicInt: 15
obj1.publicFinalInt: 42
bean.publicFinalInt: 42
obj1.readWrite: 19
bean.readWrite: 19
obj1.readOnly: 123
bean.readOnly: 123
bean.peekWriteOnly(): 21
obj2.publicStaticInt: 23
PropertyBind.publicStaticInt: 23
obj2.publicStaticFinalInt: 2112
PropertyBind.publicStaticFinalInt: 2112
obj2.staticReadWrite: 27
PropertyBind.staticReadWrite: 27
obj2.staticReadOnly: 1230
PropertyBind.staticReadOnly: 1230
PropertyBind.peekStaticWriteOnly(): 29