Rollup merge of #134140 - compiler-errors:unsafe-binders-ast, r=oli-obk

Add AST support for unsafe binders

I'm splitting up #130514 into pieces. It's impossible for me to keep up with a huge PR like that. I'll land type system support for this next, probably w/o MIR lowering, which will come later.

r? `@oli-obk`
cc `@BoxyUwU` and `@lcnr` who also may want to look at this, though this PR doesn't do too much yet

3 files changed, 6 insertions, 1 deletions

diff --git a/src/tools/clippy/clippy_lints/src/dereference.rs b/src/tools/clippy/clippy_lints/src/dereference.rs
index c300f7cd665..bd4ce7ab922 100644
--- a/src/tools/clippy/clippy_lints/src/dereference.rs
+++ b/src/tools/clippy/clippy_lints/src/dereference.rs
@@ -819,6 +819,7 @@ impl TyCoercionStability {
                 | TyKind::TraitObject(..)
                 | TyKind::InferDelegation(..)
                 | TyKind::Err(_) => Self::Reborrow,
+                TyKind::UnsafeBinder(..) => Self::None,
             };
         }
     }
diff --git a/src/tools/clippy/clippy_lints/src/loops/never_loop.rs b/src/tools/clippy/clippy_lints/src/loops/never_loop.rs
index ed9879de13b..b679fdfadc3 100644
--- a/src/tools/clippy/clippy_lints/src/loops/never_loop.rs
+++ b/src/tools/clippy/clippy_lints/src/loops/never_loop.rs
@@ -156,7 +156,8 @@ fn never_loop_expr<'tcx>(
         | ExprKind::Field(e, _)
         | ExprKind::AddrOf(_, _, e)
         | ExprKind::Repeat(e, _)
-        | ExprKind::DropTemps(e) => never_loop_expr(cx, e, local_labels, main_loop_id),
+        | ExprKind::DropTemps(e)
+        | ExprKind::UnsafeBinderCast(_, e, _) => never_loop_expr(cx, e, local_labels, main_loop_id),
         ExprKind::Let(let_expr) => never_loop_expr(cx, let_expr.init, local_labels, main_loop_id),
         ExprKind::Array(es) | ExprKind::Tup(es) => never_loop_expr_all(cx, es.iter(), local_labels, main_loop_id),
         ExprKind::MethodCall(_, receiver, es, _) => {
diff --git a/src/tools/clippy/clippy_lints/src/utils/author.rs b/src/tools/clippy/clippy_lints/src/utils/author.rs
index 311ed427cb9..521bf6a5fed 100644
--- a/src/tools/clippy/clippy_lints/src/utils/author.rs
+++ b/src/tools/clippy/clippy_lints/src/utils/author.rs
@@ -623,6 +623,9 @@ impl<'a, 'tcx> PrintVisitor<'a, 'tcx> {
                 kind!("DropTemps({expr})");
                 self.expr(expr);
             },
+            ExprKind::UnsafeBinderCast(..) => {
+                unimplemented!("unsafe binders are not implemented yet");
+            }
         }
     }