optimize `promote_consts` by caching the results of `validate_local`#96815

Merged

bors merged 2 commits intorust-lang:masterfrom

SparrowLii:promote_const

May 9, 2022

Commits on May 7, 2022

optimize `promote_consts` by cache the validate check
SparrowLii
committed

Commits on May 9, 2022

use `Result<(),()>` instead of Validity enum
SparrowLii
committed