Revert `Vec::spare_capacity_mut` impl to prevent pointers invalidation#82564

Merged

bors merged 4 commits intorust-lang:masterfrom WaffleLapkin:revert_spare_mut

Mar 4, 2021

+19-10

Commits on Feb 26, 2021

Revert Vec::spare_capacity_mut impl to prevent pointers invalidation
WaffleLapkin
committed

Commits on Mar 2, 2021

Add test that Vec::spare_capacity_mut doesn't invalidate pointers
WaffleLapkin
committed
Make Vec::split_at_spare_mut impl safer & simplier
WaffleLapkin
committed

Commits on Mar 3, 2021

Update library/alloc/src/vec/mod.rs

WaffleLapkin
and
RalfJung
authored