Revert "Small improvement to FutureSend#when_done:" Caused bootstrap crash since "@" future send syntax isn't implemented in bootstrap compiler -___-
Revert "Small improvement to FutureSend#when_done:"
Caused bootstrap crash since "@" future send syntax isn't implemented in bootstrap compiler -___-

This reverts commit 96922714c6c1b428948b57b4293fb76479557e8d.

bakkdoor/fancy,bakkdoor/fancy,bakkdoor/fancy,bakkdoor/fancy