4dd4d9b489
rustdoc: hide `#[repr(transparent)]` if it isn't part of the public ABI Fixes #90435. This hides `#[repr(transparent)]` when the non-1-ZST field the struct is "transparent" over is private. CC `@RalfJung` Tentatively nominating it for the release notes, feel free to remove the nomination. `@rustbot` label needs-fcp relnotes A-rustdoc-ui