Disallow deriving (other than Copy/Clone) on types with unnamed fields#121270

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clubby789 wants to merge 2 commits intorust-lang:masterfrom

clubby789:more-unnamed-fields-checks

Commits on Feb 19, 2024

Use `expr_field` in builtin derives and assert that we aren't accessing `_`
clubby789
committed
Prevent builtin derive macro (except Copy+Clone) usage on types with unnamed fields
clubby789
committed