1 Tests that the window.internals.observeGC hook works.
3 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
6 PASS observationA.wasCollected is false
7 PASS observationB.wasCollected is true
8 PASS observationC.wasCollected is true
9 PASS internals.observeGC(undefined) threw exception TypeError: value to observe is null or undefined.
10 PASS internals.observeGC(null) threw exception TypeError: value to observe is null or undefined.
12 PASS successfullyParsed is true