1 Tests that navigator.geolocation cannot be shadowed.
3 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
7 PASS navigator.geolocation = 1 threw exception TypeError: Attempted to assign to readonly property..
8 PASS navigator.geolocation is not 1
10 PASS navigator.geolocation = 1 did not throw exception.
11 PASS navigator.geolocation is not 1
12 PASS successfullyParsed is true