We can't test GC reliably due to our GC being conservative
currently. Once we moved over to an exact GC, we can re-enable
the test.
Change-Id: I6778ed9bee3b41372705f6b41c1379d224335e53
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>