traits: preallocate 2 Vecs of known initial size#69022

Merged

bors merged 1 commit intorust-lang:masterfrom ljedrz:traits_tweak_vecs

Feb 11, 2020

+5-4

Commits on Feb 10, 2020

preallocate 2 Vecs in traits; tweak WfPredicates::normalize
ljedrz
committed