Sema: add more type checks to `@mem{cpy,set}`

Closes #15634
Co-authored-by: Dima Afanasyev <dimaafanasev@example.com>
2703db3b40Veikka Tuominen committed on 5/15/2023, 7:31:24 AMparentab5a72f
2 files changedLine totals unavailable