Rollup merge of #144216 - Nadrieril:revert-pin-hack, r=compiler-errors

Don't consider unstable fields always-inhabited

This reverts the hack in https://github.com/rust-lang/rust/pull/133889 now that `Pin`'s field is no longer public.

Fixes https://github.com/rust-lang/rust/issues/143468.

r? ```@compiler-errors```

1 files changed, 2 insertions, 5 deletions

diff --git a/compiler/rustc_pattern_analysis/src/rustc.rs b/compiler/rustc_pattern_analysis/src/rustc.rs
index ee72b676b38..0c1b0d622f2 100644
--- a/compiler/rustc_pattern_analysis/src/rustc.rs
+++ b/compiler/rustc_pattern_analysis/src/rustc.rs
@@ -16,7 +16,7 @@ use rustc_middle::ty::{
 };
 use rustc_middle::{bug, span_bug};
 use rustc_session::lint;
-use rustc_span::{DUMMY_SP, ErrorGuaranteed, Span, sym};
+use rustc_span::{DUMMY_SP, ErrorGuaranteed, Span};
 
 use crate::constructor::Constructor::*;
 use crate::constructor::{
@@ -238,10 +238,7 @@ impl<'p, 'tcx: 'p> RustcPatCtxt<'p, 'tcx> {
                         let is_visible =
                             adt.is_enum() || field.vis.is_accessible_from(cx.module, cx.tcx);
                         let is_uninhabited = cx.is_uninhabited(*ty);
-                        let is_unstable = cx.tcx.lookup_stability(field.did).is_some_and(|stab| {
-                            stab.is_unstable() && stab.feature != sym::rustc_private
-                        });
-                        let skip = is_uninhabited && (!is_visible || is_unstable);
+                        let skip = is_uninhabited && !is_visible;
                         (ty, PrivateUninhabitedField(skip))
                     });
                     cx.dropless_arena.alloc_from_iter(tys)