Change ManuallyDrop<T> to a lang item.#52711

Merged

bors merged 4 commits intorust-lang:masterfrom

eddyb:unsized-manuallydrop

Jul 28, 2018

Commits on Jul 25, 2018

Change ManuallyDrop from an union to a struct and make it a lang item.
eddyb
committed

Commits on Jul 27, 2018