Tests that Window properties are indeed configurable unless [Unforgeable]

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


* Regular IDL attribute.
PASS Object.getOwnPropertyDescriptor(window, 'name').configurable is true
PASS window.name is ""
PASS delete window.name is true
PASS window.name is undefined.
window.name = 3
PASS window.name is 3
PASS delete window.name is true
PASS window.name is undefined.

* Constructor attributes.
PASS Object.getOwnPropertyDescriptor(window, 'Node').configurable is true
PASS window.Node is not undefined
PASS delete window.Node is true
PASS window.Node is undefined.
window.Node = 3
PASS window.Node is 3
PASS delete window.Node is true
PASS window.Node is undefined.

* [Unforgeable] IDL attribute.
PASS Object.getOwnPropertyDescriptor(window, 'window').configurable is false
PASS window.window is not undefined
PASS delete window.window is false
PASS window.window is not undefined
window.window = 3
PASS window.window is not 3

PASS successfullyParsed is true

TEST COMPLETE