Continuation.pin/unpin have an intrinsic since JDK-8338745. Need to do the same for Continuation.isPinned.
If we had an instrinic for this method then it could be used in the I/O area to make syscalls when pinned. This would avoid the deadlock scenario where virtual teads blocked in network I/O can't continue when all carriers are pinned.
If we had an instrinic for this method then it could be used in the I/O area to make syscalls when pinned. This would avoid the deadlock scenario where virtual teads blocked in network I/O can't continue when all carriers are pinned.