tomteb/carbon-lang: == Clone of https://github.com/carbon-language/carbon-lang.git == @ 7d46add4e13d894c3c2d78974800a5eb91fdd1d4

Strom: 7d46add4e1

Jon Ross-Perkins 6b5eb1a101 Id::Invalid -> Id::None (#4834)		1 rok pred
..
basic.carbon	3f4de65ad8 Improve SemIR naming of `import_ref`s (#4824)	1 rok pred
collapse.carbon	3f4de65ad8 Improve SemIR naming of `import_ref`s (#4824)	1 rok pred
fail_collapse.carbon	3f4de65ad8 Improve SemIR naming of `import_ref`s (#4824)	1 rok pred
import.carbon	6b5eb1a101 Id::Invalid -> Id::None (#4834)	1 rok pred