Fix type privacy lints error message

compiler/rustc_privacy/messages.ftl

@@ -18,7 +18,7 @@ privacy_private_in_public_lint =
     })
 
 privacy_private_interface_or_bounds_lint = {$ty_kind} `{$ty_descr}` is more private than the item `{$item_descr}`
-    .item_note = {$item_kind} `{$item_descr}` is reachable at visibility `{$item_vis_descr}`
+    .item_label = {$item_kind} `{$item_descr}` is reachable at visibility `{$item_vis_descr}`
     .ty_note = but {$ty_kind} `{$ty_descr}` is only usable at visibility `{$ty_vis_descr}`
 
 privacy_report_effective_visibility = {$descr}

compiler/rustc_privacy/src/errors.rs

@@ -116,7 +116,7 @@ pub struct UnnameableTypesLint<'a> {
 #[derive(LintDiagnostic)]
 #[diag(privacy_private_interface_or_bounds_lint)]
 pub struct PrivateInterfacesOrBoundsLint<'a> {
-    #[note(privacy_item_note)]
+    #[label(privacy_item_label)]
     pub item_span: Span,
     pub item_kind: &'a str,
     pub item_descr: DiagnosticArgFromDisplay<'a>,

compiler/rustc_privacy/src/lib.rs

@@ -1865,9 +1865,10 @@ impl SearchInterfaceForPrivateItemsVisitor<'_> {
             } else {
                 lint::builtin::PRIVATE_BOUNDS
             };
-            self.tcx.emit_lint(
+            self.tcx.emit_spanned_lint(
                 lint,
                 hir_id,
+                span,
                 PrivateInterfacesOrBoundsLint {
                     item_span: span,
                     item_kind: self.tcx.def_descr(self.item_def_id.to_def_id()),

tests/ui/associated-inherent-types/private-in-public.rs

@@ -12,12 +12,15 @@
 pub type PubAlias0 = PubTy::PrivAssocTy;
 //~^ ERROR private associated type `PubTy::PrivAssocTy` in public interface (error E0446)
 //~| WARNING this was previously accepted
+//~| WARNING associated type `PubTy::PrivAssocTy` is more private than the item `PubAlias0`
 pub type PubAlias1 = PrivTy::PubAssocTy;
 //~^ ERROR private type `PrivTy` in public interface (error E0446)
 //~| WARNING this was previously accepted
+//~| WARNING type `PrivTy` is more private than the item `PubAlias1`
 pub type PubAlias2 = PubTy::PubAssocTy<PrivTy>;
 //~^ ERROR private type `PrivTy` in public interface (error E0446)
 //~| WARNING this was previously accepted
+//~| WARNING type `PrivTy` is more private than the item `PubAlias2`
 
 pub struct PubTy;
 impl PubTy {

tests/ui/associated-inherent-types/private-in-public.stderr

@@ -13,14 +13,13 @@ LL | #![deny(private_in_public)]
    |         ^^^^^^^^^^^^^^^^^
 
 warning: associated type `PubTy::PrivAssocTy` is more private than the item `PubAlias0`
-   |
-note: type alias `PubAlias0` is reachable at visibility `pub`
   --> $DIR/private-in-public.rs:12:1
    |
 LL | pub type PubAlias0 = PubTy::PrivAssocTy;
-   | ^^^^^^^^^^^^^^^^^^
+   | ^^^^^^^^^^^^^^^^^^ type alias `PubAlias0` is reachable at visibility `pub`
+   |
 note: but associated type `PubTy::PrivAssocTy` is only usable at visibility `pub(crate)`
-  --> $DIR/private-in-public.rs:24:5
+  --> $DIR/private-in-public.rs:27:5
    |
 LL |     type PrivAssocTy = ();
    |     ^^^^^^^^^^^^^^^^
@@ -31,7 +30,7 @@ LL | #![warn(private_interfaces)]
    |         ^^^^^^^^^^^^^^^^^^
 
 error: private type `PrivTy` in public interface (error E0446)
-  --> $DIR/private-in-public.rs:15:1
+  --> $DIR/private-in-public.rs:16:1
    |
 LL | pub type PubAlias1 = PrivTy::PubAssocTy;
    | ^^^^^^^^^^^^^^^^^^
@@ -40,20 +39,19 @@ LL | pub type PubAlias1 = PrivTy::PubAssocTy;
    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
 
 warning: type `PrivTy` is more private than the item `PubAlias1`
-   |
-note: type alias `PubAlias1` is reachable at visibility `pub`
-  --> $DIR/private-in-public.rs:15:1
+  --> $DIR/private-in-public.rs:16:1
    |
 LL | pub type PubAlias1 = PrivTy::PubAssocTy;
-   | ^^^^^^^^^^^^^^^^^^
+   | ^^^^^^^^^^^^^^^^^^ type alias `PubAlias1` is reachable at visibility `pub`
+   |
 note: but type `PrivTy` is only usable at visibility `pub(crate)`
-  --> $DIR/private-in-public.rs:28:1
+  --> $DIR/private-in-public.rs:31:1
    |
 LL | struct PrivTy;
    | ^^^^^^^^^^^^^
 
 error: private type `PrivTy` in public interface (error E0446)
-  --> $DIR/private-in-public.rs:18:1
+  --> $DIR/private-in-public.rs:20:1
    |
 LL | pub type PubAlias2 = PubTy::PubAssocTy<PrivTy>;
    | ^^^^^^^^^^^^^^^^^^
@@ -62,14 +60,13 @@ LL | pub type PubAlias2 = PubTy::PubAssocTy<PrivTy>;
    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
 
 warning: type `PrivTy` is more private than the item `PubAlias2`
-   |
-note: type alias `PubAlias2` is reachable at visibility `pub`
-  --> $DIR/private-in-public.rs:18:1
+  --> $DIR/private-in-public.rs:20:1
    |
 LL | pub type PubAlias2 = PubTy::PubAssocTy<PrivTy>;
-   | ^^^^^^^^^^^^^^^^^^
+   | ^^^^^^^^^^^^^^^^^^ type alias `PubAlias2` is reachable at visibility `pub`
+   |
 note: but type `PrivTy` is only usable at visibility `pub(crate)`
-  --> $DIR/private-in-public.rs:28:1
+  --> $DIR/private-in-public.rs:31:1
    |
 LL | struct PrivTy;
    | ^^^^^^^^^^^^^

tests/ui/const-generics/generic_const_exprs/eval-privacy.rs

@@ -21,6 +21,7 @@ where
 {
     type AssocTy = Const<{ my_const_fn(U) }>;
     //~^ ERROR private type
+    //~| WARNING type `fn(u8) -> u8 {my_const_fn}` is more private than the item `<Const<U> as Trait>::AssocTy`
     fn assoc_fn() -> Self::AssocTy {
         Const
     }

tests/ui/const-generics/generic_const_exprs/eval-privacy.stderr

@@ -8,14 +8,13 @@ LL | const fn my_const_fn(val: u8) -> u8 {
    | ----------------------------------- `fn(u8) -> u8 {my_const_fn}` declared as private
 
 warning: type `fn(u8) -> u8 {my_const_fn}` is more private than the item `<Const<U> as Trait>::AssocTy`
-   |
-note: associated type `<Const<U> as Trait>::AssocTy` is reachable at visibility `pub`
   --> $DIR/eval-privacy.rs:22:5
    |
 LL |     type AssocTy = Const<{ my_const_fn(U) }>;
-   |     ^^^^^^^^^^^^
+   |     ^^^^^^^^^^^^ associated type `<Const<U> as Trait>::AssocTy` is reachable at visibility `pub`
+   |
 note: but type `fn(u8) -> u8 {my_const_fn}` is only usable at visibility `pub(crate)`
-  --> $DIR/eval-privacy.rs:29:1
+  --> $DIR/eval-privacy.rs:30:1
    |
 LL | const fn my_const_fn(val: u8) -> u8 {
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

tests/ui/error-codes/E0445.rs

@@ -12,9 +12,12 @@ trait Foo {
 
 pub trait Bar : Foo {}
 //~^ ERROR private trait `Foo` in public interface [E0445]
+//~| WARNING trait `Foo` is more private than the item `Bar`
 pub struct Bar2<T: Foo>(pub T);
 //~^ ERROR private trait `Foo` in public interface [E0445]
+//~| WARNING trait `Foo` is more private than the item `Bar2`
 pub fn foo<T: Foo> (t: T) {}
 //~^ ERROR private trait `Foo` in public interface [E0445]
+//~| WARNING trait `Foo` is more private than the item `foo`
 
 fn main() {}

tests/ui/error-codes/E0445.stderr

@@ -8,12 +8,11 @@ LL | pub trait Bar : Foo {}
    | ^^^^^^^^^^^^^^^^^^^ can't leak private trait
 
 warning: trait `Foo` is more private than the item `Bar`
-   |
-note: trait `Bar` is reachable at visibility `pub`
   --> $DIR/E0445.rs:13:1
    |
 LL | pub trait Bar : Foo {}
-   | ^^^^^^^^^^^^^^^^^^^
+   | ^^^^^^^^^^^^^^^^^^^ trait `Bar` is reachable at visibility `pub`
+   |
 note: but trait `Foo` is only usable at visibility `pub(crate)`
   --> $DIR/E0445.rs:9:1
    |
@@ -26,7 +25,7 @@ LL | #[warn(private_bounds)]
    |        ^^^^^^^^^^^^^^
 
 error[E0445]: private trait `Foo` in public interface
-  --> $DIR/E0445.rs:15:1
+  --> $DIR/E0445.rs:16:1
    |
 LL | trait Foo {
    | --------- `Foo` declared as private
@@ -35,20 +34,19 @@ LL | pub struct Bar2<T: Foo>(pub T);
    | ^^^^^^^^^^^^^^^^^^^^^^^ can't leak private trait
 
 warning: trait `Foo` is more private than the item `Bar2`
-   |
-note: struct `Bar2` is reachable at visibility `pub`
-  --> $DIR/E0445.rs:15:1
+  --> $DIR/E0445.rs:16:1
    |
 LL | pub struct Bar2<T: Foo>(pub T);
-   | ^^^^^^^^^^^^^^^^^^^^^^^
+   | ^^^^^^^^^^^^^^^^^^^^^^^ struct `Bar2` is reachable at visibility `pub`
+   |
 note: but trait `Foo` is only usable at visibility `pub(crate)`
   --> $DIR/E0445.rs:9:1
    |
 LL | trait Foo {
    | ^^^^^^^^^
 
 error[E0445]: private trait `Foo` in public interface
-  --> $DIR/E0445.rs:17:1
+  --> $DIR/E0445.rs:19:1
    |
 LL | trait Foo {
    | --------- `Foo` declared as private
@@ -57,12 +55,11 @@ LL | pub fn foo<T: Foo> (t: T) {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't leak private trait
 
 warning: trait `Foo` is more private than the item `foo`
-   |
-note: function `foo` is reachable at visibility `pub`
-  --> $DIR/E0445.rs:17:1
+  --> $DIR/E0445.rs:19:1
    |
 LL | pub fn foo<T: Foo> (t: T) {}
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^ function `foo` is reachable at visibility `pub`
+   |
 note: but trait `Foo` is only usable at visibility `pub(crate)`
   --> $DIR/E0445.rs:9:1
    |

tests/ui/issues/issue-18389.rs

@@ -13,6 +13,7 @@ trait Private<P, R> {
 }
 pub trait Public: Private<
 //~^ ERROR private trait `Private<<Self as Public>::P, <Self as Public>::R>` in public interface
+//~| WARNING trait `Private<<Self as Public>::P, <Self as Public>::R>` is more private than the item `Public`
     <Self as Public>::P,
     <Self as Public>::R
 > {

tests/ui/issues/issue-18389.stderr

@@ -6,22 +6,23 @@ LL |   trait Private<P, R> {
 ...
 LL | / pub trait Public: Private<
 LL | |
+LL | |
 LL | |     <Self as Public>::P,
 LL | |     <Self as Public>::R
 LL | | > {
    | |_^ can't leak private trait
 
 warning: trait `Private<<Self as Public>::P, <Self as Public>::R>` is more private than the item `Public`
-   |
-note: trait `Public` is reachable at visibility `pub`
   --> $DIR/issue-18389.rs:14:1
    |
 LL | / pub trait Public: Private<
 LL | |
+LL | |
 LL | |     <Self as Public>::P,
 LL | |     <Self as Public>::R
 LL | | > {
-   | |_^
+   | |_^ trait `Public` is reachable at visibility `pub`
+   |
 note: but trait `Private<<Self as Public>::P, <Self as Public>::R>` is only usable at visibility `pub(crate)`
   --> $DIR/issue-18389.rs:11:1
    |

tests/ui/privacy/private-in-public-non-principal.rs

@@ -13,6 +13,7 @@ auto trait PrivNonPrincipal {}
 pub fn leak_dyn_nonprincipal() -> Box<dyn PubPrincipal + PrivNonPrincipal> { loop {} }
 //~^ WARN private trait `PrivNonPrincipal` in public interface
 //~| WARN this was previously accepted
+//~| ERROR trait `PrivNonPrincipal` is more private than the item `leak_dyn_nonprincipal`
 
 #[deny(missing_docs)]
 fn container() {

tests/ui/privacy/private-in-public-non-principal.stderr

@@ -9,12 +9,11 @@ LL | pub fn leak_dyn_nonprincipal() -> Box<dyn PubPrincipal + PrivNonPrincipal>
    = note: `#[warn(private_in_public)]` on by default
 
 error: trait `PrivNonPrincipal` is more private than the item `leak_dyn_nonprincipal`
-   |
-note: function `leak_dyn_nonprincipal` is reachable at visibility `pub`
   --> $DIR/private-in-public-non-principal.rs:13:1
    |
 LL | pub fn leak_dyn_nonprincipal() -> Box<dyn PubPrincipal + PrivNonPrincipal> { loop {} }
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `leak_dyn_nonprincipal` is reachable at visibility `pub`
+   |
 note: but trait `PrivNonPrincipal` is only usable at visibility `pub(crate)`
   --> $DIR/private-in-public-non-principal.rs:11:1
    |
@@ -27,13 +26,13 @@ LL | #![deny(private_interfaces)]
    |         ^^^^^^^^^^^^^^^^^^
 
 error: missing documentation for an associated function
-  --> $DIR/private-in-public-non-principal.rs:20:9
+  --> $DIR/private-in-public-non-principal.rs:21:9
    |
 LL |         pub fn check_doc_lint() {}
    |         ^^^^^^^^^^^^^^^^^^^^^^^
    |
 note: the lint level is defined here
-  --> $DIR/private-in-public-non-principal.rs:17:8
+  --> $DIR/private-in-public-non-principal.rs:18:8
    |
 LL | #[deny(missing_docs)]
    |        ^^^^^^^^^^^^

tests/ui/privacy/where-priv-type.rs

@@ -25,6 +25,7 @@ impl PubTrWithAssocTy for PrivTy { type AssocTy = PrivTy; }
 pub struct S
 //~^ WARNING private type `PrivTy` in public interface
 //~| WARNING hard error
+//~| WARNING type `PrivTy` is more private than the item `S`
 where
     PrivTy:
 {}
@@ -33,6 +34,7 @@ where
 pub enum E
 //~^ WARNING private type `PrivTy` in public interface
 //~| WARNING hard error
+//~| WARNING type `PrivTy` is more private than the item `E`
 where
     PrivTy:
 {}
@@ -41,19 +43,22 @@ where
 pub fn f()
 //~^ WARNING private type `PrivTy` in public interface
 //~| WARNING hard error
+//~| WARNING type `PrivTy` is more private than the item `f`
 where
     PrivTy:
 {}
 
 
 impl S
 //~^ ERROR private type `PrivTy` in public interface
+//~| WARNING type `PrivTy` is more private than the item `S`
 where
     PrivTy:
 {
     pub fn f()
     //~^ WARNING private type `PrivTy` in public interface
     //~| WARNING hard error
+    //~| WARNING type `PrivTy` is more private than the item `S::f`
     where
         PrivTy:
     {}
@@ -85,6 +90,7 @@ where
 {
     type AssocTy = Const<{ my_const_fn(U) }>;
     //~^ ERROR private type
+    //~| WARNING type `fn(u8) -> u8 {my_const_fn}` is more private than the item `<Const<U> as Trait>::AssocTy`
     fn assoc_fn() -> Self::AssocTy {
         Const
     }