[move-only] Add a new type of mark_must_check initable_but_not_consumable#64690

jckarter merged 1 commit intoswiftlang:mainswiftlang/swift:mainfrom

gottesmm:pr-08a1f1872f4e90eb29be0ba7c845d07fbb008571gottesmm/swift:pr-08a1f1872f4e90eb29be0ba7c845d07fbb008571Copy head branch name to clipboard