Fix ViewGroupOverlay's handling of invalidating viewgroups

Invalidating a view property (alpha, rotation, etc.) causes an
invalidation process that does not work correctly when the view is
in a ViewOverlay. Specifically, if the view is not directly in the
overlay, but is instead inside a hierarchy which is within the overlay,
then the invalidation process stops at the ViewOverlay itself, because
the ViewOverlay has no "parent" view.

The fix is to override the invalidateChildInParentFast() method, just
like we override invalidateChildInParent(), to forward the invalidation
to the host view.

Issue #9389230 Animations not running for nested views under ViewGroupOverlay

Change-Id: I03fcef10ed1c8a91cb26d5d9d6945634b0b695b5