6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
Summary: Fix misplaced probe point
Reviewed-by: rasbold, phh
Contributed-by: neojia@gmail.com
6914402: G1: assert(!is_young_card(cached_ptr),"shouldn't get a card in young region")
Summary: Invalid assert. Filter cards evicted from the card count cache instead.
Reviewed-by: apetrusenko, tonyp