Rollup merge of rust-lang#73578 - RalfJung:ty-ctxt-at, r=jonas-schievink

Make is_freeze and is_copy_modulo_regions take TyCtxtAt

Make is_freeze and is_copy_modulo_regions take TyCtxtAt instead of separately taking TyCtxt and Span. This is consistent with is_sized.

clippy_lints/src/functions.rs

@@ -513,7 +513,7 @@ fn is_mutable_ty<'a, 'tcx>(cx: &LateContext<'a, 'tcx>, ty: Ty<'tcx>, span: Span,
         // primitive types are never mutable
         ty::Bool | ty::Char | ty::Int(_) | ty::Uint(_) | ty::Float(_) | ty::Str => false,
         ty::Adt(ref adt, ref substs) => {
-            tys.insert(adt.did) && !ty.is_freeze(cx.tcx, cx.param_env, span)
+            tys.insert(adt.did) && !ty.is_freeze(cx.tcx.at(span), cx.param_env)
                 || KNOWN_WRAPPER_TYS.iter().any(|path| match_def_path(cx, adt.did, path))
                     && substs.types().any(|ty| is_mutable_ty(cx, ty, span, tys))
         },

clippy_lints/src/let_if_seq.rs

@@ -74,9 +74,8 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for LetIfSeq {
                     let span = stmt.span.to(if_.span);
 
                     let has_interior_mutability = !cx.tables.node_type(canonical_id).is_freeze(
-                        cx.tcx,
+                        cx.tcx.at(span),
                         cx.param_env,
-                        span
                     );
                     if has_interior_mutability { return; }
 

clippy_lints/src/mut_key.rs

@@ -118,7 +118,7 @@ fn is_mutable_type<'a, 'tcx>(cx: &LateContext<'a, 'tcx>, ty: Ty<'tcx>, span: Spa
             size.try_eval_usize(cx.tcx, cx.param_env).map_or(true, |u| u != 0) && is_mutable_type(cx, inner_ty, span)
         },
         Tuple(..) => ty.tuple_fields().any(|ty| is_mutable_type(cx, ty, span)),
-        Adt(..) => cx.tcx.layout_of(cx.param_env.and(ty)).is_ok() && !ty.is_freeze(cx.tcx, cx.param_env, span),
+        Adt(..) => cx.tcx.layout_of(cx.param_env.and(ty)).is_ok() && !ty.is_freeze(cx.tcx.at(span), cx.param_env),
         _ => false,
     }
 }

clippy_lints/src/non_copy_const.rs

@@ -110,7 +110,7 @@ impl Source {
 }
 
 fn verify_ty_bound<'a, 'tcx>(cx: &LateContext<'a, 'tcx>, ty: Ty<'tcx>, source: Source) {
-    if ty.is_freeze(cx.tcx, cx.param_env, DUMMY_SP) || is_copy(cx, ty) {
+    if ty.is_freeze(cx.tcx.at(DUMMY_SP), cx.param_env) || is_copy(cx, ty) {
         // An `UnsafeCell` is `!Copy`, and an `UnsafeCell` is also the only type which
         // is `!Freeze`, thus if our type is `Copy` we can be sure it must be `Freeze`
         // as well.

clippy_lints/src/question_mark.rs

@@ -137,7 +137,7 @@ impl QuestionMark {
     fn moves_by_default(cx: &LateContext<'_, '_>, expression: &Expr<'_>) -> bool {
         let expr_ty = cx.tables.expr_ty(expression);
 
-        !expr_ty.is_copy_modulo_regions(cx.tcx, cx.param_env, expression.span)
+        !expr_ty.is_copy_modulo_regions(cx.tcx.at(expression.span), cx.param_env)
     }
 
     fn is_option(cx: &LateContext<'_, '_>, expression: &Expr<'_>) -> bool {

clippy_lints/src/utils/mod.rs

@@ -891,7 +891,7 @@ pub fn type_is_unsafe_function<'a, 'tcx>(cx: &LateContext<'a, 'tcx>, ty: Ty<'tcx
 }
 
 pub fn is_copy<'a, 'tcx>(cx: &LateContext<'a, 'tcx>, ty: Ty<'tcx>) -> bool {
-    ty.is_copy_modulo_regions(cx.tcx, cx.param_env, DUMMY_SP)
+    ty.is_copy_modulo_regions(cx.tcx.at(DUMMY_SP), cx.param_env)
 }
 
 /// Checks if an expression is constructing a tuple-like enum variant or struct