Rollup merge of #143171 - fmease:fix-span-of-maybe-const-mod, r=compiler-errors

Fix the span of trait bound modifier `[const]`

r? project-const-traits or anyone

compiler/rustc_parse/src/parser/ty.rs

@@ -1071,7 +1071,7 @@ impl<'a> Parser<'a> {
             && self.look_ahead(1, |t| t.is_keyword(kw::Const))
             && self.look_ahead(2, |t| *t == token::CloseBracket)
         {
-            let start = self.prev_token.span;
+            let start = self.token.span;
             self.bump();
             self.expect_keyword(exp!(Const)).unwrap();
             self.bump();

tests/ui/consts/fn_trait_refs.stderr

@@ -5,145 +5,145 @@ LL | #![feature(const_fn_trait_ref_impls)]
    |            ^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:14:6
+  --> $DIR/fn_trait_refs.rs:14:8
    |
 LL |     T: [const] Fn<()> + [const] Destruct,
-   |      ^^^^^^^^^ can't be applied to `Fn`
+   |        ^^^^^^^ can't be applied to `Fn`
    |
 note: `Fn` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:14:6
+  --> $DIR/fn_trait_refs.rs:14:8
    |
 LL |     T: [const] Fn<()> + [const] Destruct,
-   |      ^^^^^^^^^ can't be applied to `Fn`
+   |        ^^^^^^^ can't be applied to `Fn`
    |
 note: `Fn` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:14:6
+  --> $DIR/fn_trait_refs.rs:14:8
    |
 LL |     T: [const] Fn<()> + [const] Destruct,
-   |      ^^^^^^^^^ can't be applied to `Fn`
+   |        ^^^^^^^ can't be applied to `Fn`
    |
 note: `Fn` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:21:6
+  --> $DIR/fn_trait_refs.rs:21:8
    |
 LL |     T: [const] FnMut<()> + [const] Destruct,
-   |      ^^^^^^^^^ can't be applied to `FnMut`
+   |        ^^^^^^^ can't be applied to `FnMut`
    |
 note: `FnMut` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:21:6
+  --> $DIR/fn_trait_refs.rs:21:8
    |
 LL |     T: [const] FnMut<()> + [const] Destruct,
-   |      ^^^^^^^^^ can't be applied to `FnMut`
+   |        ^^^^^^^ can't be applied to `FnMut`
    |
 note: `FnMut` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:21:6
+  --> $DIR/fn_trait_refs.rs:21:8
    |
 LL |     T: [const] FnMut<()> + [const] Destruct,
-   |      ^^^^^^^^^ can't be applied to `FnMut`
+   |        ^^^^^^^ can't be applied to `FnMut`
    |
 note: `FnMut` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:28:6
+  --> $DIR/fn_trait_refs.rs:28:8
    |
 LL |     T: [const] FnOnce<()>,
-   |      ^^^^^^^^^ can't be applied to `FnOnce`
+   |        ^^^^^^^ can't be applied to `FnOnce`
    |
 note: `FnOnce` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:28:6
+  --> $DIR/fn_trait_refs.rs:28:8
    |
 LL |     T: [const] FnOnce<()>,
-   |      ^^^^^^^^^ can't be applied to `FnOnce`
+   |        ^^^^^^^ can't be applied to `FnOnce`
    |
 note: `FnOnce` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:28:6
+  --> $DIR/fn_trait_refs.rs:28:8
    |
 LL |     T: [const] FnOnce<()>,
-   |      ^^^^^^^^^ can't be applied to `FnOnce`
+   |        ^^^^^^^ can't be applied to `FnOnce`
    |
 note: `FnOnce` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:35:6
+  --> $DIR/fn_trait_refs.rs:35:8
    |
 LL |     T: [const] Fn<()> + [const] Destruct,
-   |      ^^^^^^^^^ can't be applied to `Fn`
+   |        ^^^^^^^ can't be applied to `Fn`
    |
 note: `Fn` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:35:6
+  --> $DIR/fn_trait_refs.rs:35:8
    |
 LL |     T: [const] Fn<()> + [const] Destruct,
-   |      ^^^^^^^^^ can't be applied to `Fn`
+   |        ^^^^^^^ can't be applied to `Fn`
    |
 note: `Fn` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:35:6
+  --> $DIR/fn_trait_refs.rs:35:8
    |
 LL |     T: [const] Fn<()> + [const] Destruct,
-   |      ^^^^^^^^^ can't be applied to `Fn`
+   |        ^^^^^^^ can't be applied to `Fn`
    |
 note: `Fn` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:49:6
+  --> $DIR/fn_trait_refs.rs:49:8
    |
 LL |     T: [const] FnMut<()> + [const] Destruct,
-   |      ^^^^^^^^^ can't be applied to `FnMut`
+   |        ^^^^^^^ can't be applied to `FnMut`
    |
 note: `FnMut` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:49:6
+  --> $DIR/fn_trait_refs.rs:49:8
    |
 LL |     T: [const] FnMut<()> + [const] Destruct,
-   |      ^^^^^^^^^ can't be applied to `FnMut`
+   |        ^^^^^^^ can't be applied to `FnMut`
    |
 note: `FnMut` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:49:6
+  --> $DIR/fn_trait_refs.rs:49:8
    |
 LL |     T: [const] FnMut<()> + [const] Destruct,
-   |      ^^^^^^^^^ can't be applied to `FnMut`
+   |        ^^^^^^^ can't be applied to `FnMut`
    |
 note: `FnMut` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL

tests/ui/consts/unstable-const-fn-in-libcore.stderr

@@ -1,17 +1,17 @@
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/unstable-const-fn-in-libcore.rs:19:30
+  --> $DIR/unstable-const-fn-in-libcore.rs:19:32
    |
 LL |     const fn unwrap_or_else<F: [const] FnOnce() -> T>(self, f: F) -> T {
-   |                              ^^^^^^^^^ can't be applied to `FnOnce`
+   |                                ^^^^^^^ can't be applied to `FnOnce`
    |
 note: `FnOnce` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/unstable-const-fn-in-libcore.rs:19:30
+  --> $DIR/unstable-const-fn-in-libcore.rs:19:32
    |
 LL |     const fn unwrap_or_else<F: [const] FnOnce() -> T>(self, f: F) -> T {
-   |                              ^^^^^^^^^ can't be applied to `FnOnce`
+   |                                ^^^^^^^ can't be applied to `FnOnce`
    |
 note: `FnOnce` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL

tests/ui/impl-trait/normalize-tait-in-const.stderr

@@ -1,17 +1,17 @@
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/normalize-tait-in-const.rs:27:33
+  --> $DIR/normalize-tait-in-const.rs:27:35
    |
 LL | const fn with_positive<F: for<'a> [const] Fn(&'a Alias<'a>) + [const] Destruct>(fun: F) {
-   |                                 ^^^^^^^^^ can't be applied to `Fn`
+   |                                   ^^^^^^^ can't be applied to `Fn`
    |
 note: `Fn` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/normalize-tait-in-const.rs:27:33
+  --> $DIR/normalize-tait-in-const.rs:27:35
    |
 LL | const fn with_positive<F: for<'a> [const] Fn(&'a Alias<'a>) + [const] Destruct>(fun: F) {
-   |                                 ^^^^^^^^^ can't be applied to `Fn`
+   |                                   ^^^^^^^ can't be applied to `Fn`
    |
 note: `Fn` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL

tests/ui/parser/bounds-type.stderr

@@ -21,10 +21,10 @@ LL |     T: [const] ?Tr,
    |        there is not a well-defined meaning for a `[const] ?` trait
 
 error: `[const]` may only modify trait bounds, not lifetime bounds
-  --> $DIR/bounds-type.rs:16:6
+  --> $DIR/bounds-type.rs:16:8
    |
 LL |     T: [const] 'a,
-   |      ^^^^^^^^^
+   |        ^^^^^^^
 
 error: `const` may only modify trait bounds, not lifetime bounds
   --> $DIR/bounds-type.rs:17:8

tests/ui/specialization/const_trait_impl.stderr

@@ -1,55 +1,55 @@
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/const_trait_impl.rs:34:7
+  --> $DIR/const_trait_impl.rs:34:9
    |
 LL | impl<T: [const] Default> const A for T {
-   |       ^^^^^^^^^ can't be applied to `Default`
+   |         ^^^^^^^ can't be applied to `Default`
    |
 note: `Default` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/default.rs:LL:COL
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/const_trait_impl.rs:40:7
+  --> $DIR/const_trait_impl.rs:40:9
    |
 LL | impl<T: [const] Default + [const] Sup> const A for T {
-   |       ^^^^^^^^^ can't be applied to `Default`
+   |         ^^^^^^^ can't be applied to `Default`
    |
 note: `Default` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/default.rs:LL:COL
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/const_trait_impl.rs:46:7
+  --> $DIR/const_trait_impl.rs:46:9
    |
 LL | impl<T: [const] Default + [const] Sub> const A for T {
-   |       ^^^^^^^^^ can't be applied to `Default`
+   |         ^^^^^^^ can't be applied to `Default`
    |
 note: `Default` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/default.rs:LL:COL
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/const_trait_impl.rs:40:7
+  --> $DIR/const_trait_impl.rs:40:9
    |
 LL | impl<T: [const] Default + [const] Sup> const A for T {
-   |       ^^^^^^^^^ can't be applied to `Default`
+   |         ^^^^^^^ can't be applied to `Default`
    |
 note: `Default` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/default.rs:LL:COL
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/const_trait_impl.rs:34:7
+  --> $DIR/const_trait_impl.rs:34:9
    |
 LL | impl<T: [const] Default> const A for T {
-   |       ^^^^^^^^^ can't be applied to `Default`
+   |         ^^^^^^^ can't be applied to `Default`
    |
 note: `Default` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/default.rs:LL:COL
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/const_trait_impl.rs:46:7
+  --> $DIR/const_trait_impl.rs:46:9
    |
 LL | impl<T: [const] Default + [const] Sub> const A for T {
-   |       ^^^^^^^^^ can't be applied to `Default`
+   |         ^^^^^^^ can't be applied to `Default`
    |
 note: `Default` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/default.rs:LL:COL

tests/ui/traits/const-traits/conditionally-const-and-const-params.stderr

@@ -1,8 +1,8 @@
 error: `[const]` is not allowed here
-  --> $DIR/conditionally-const-and-const-params.rs:8:13
+  --> $DIR/conditionally-const-and-const-params.rs:8:15
    |
 LL |     fn add<A: [const] Add42>(self) -> Foo<{ A::add(N) }> {
-   |             ^^^^^^^^^
+   |               ^^^^^^^
    |
 note: this function is not `const`, so it cannot have `[const]` trait bounds
   --> $DIR/conditionally-const-and-const-params.rs:8:8
@@ -11,10 +11,10 @@ LL |     fn add<A: [const] Add42>(self) -> Foo<{ A::add(N) }> {
    |        ^^^
 
 error: `[const]` is not allowed here
-  --> $DIR/conditionally-const-and-const-params.rs:26:9
+  --> $DIR/conditionally-const-and-const-params.rs:26:11
    |
 LL | fn bar<A: [const] Add42, const N: usize>(_: Foo<N>) -> Foo<{ A::add(N) }> {
-   |         ^^^^^^^^^
+   |           ^^^^^^^
    |
 note: this function is not `const`, so it cannot have `[const]` trait bounds
   --> $DIR/conditionally-const-and-const-params.rs:26:4

tests/ui/traits/const-traits/conditionally-const-invalid-places.stderr

@@ -1,8 +1,8 @@
 error: `[const]` is not allowed here
-  --> $DIR/conditionally-const-invalid-places.rs:7:24
+  --> $DIR/conditionally-const-invalid-places.rs:7:26
    |
 LL | fn non_const_function<T: [const] Trait>() {}
-   |                        ^^^^^^^^^
+   |                          ^^^^^^^
    |
 note: this function is not `const`, so it cannot have `[const]` trait bounds
   --> $DIR/conditionally-const-invalid-places.rs:7:4
@@ -11,66 +11,66 @@ LL | fn non_const_function<T: [const] Trait>() {}
    |    ^^^^^^^^^^^^^^^^^^
 
 error: `[const]` is not allowed here
-  --> $DIR/conditionally-const-invalid-places.rs:9:16
+  --> $DIR/conditionally-const-invalid-places.rs:9:18
    |
 LL | struct Struct<T: [const] Trait> { field: T }
-   |                ^^^^^^^^^
+   |                  ^^^^^^^
    |
    = note: this item cannot have `[const]` trait bounds
 
 error: `[const]` is not allowed here
-  --> $DIR/conditionally-const-invalid-places.rs:10:21
+  --> $DIR/conditionally-const-invalid-places.rs:10:23
    |
 LL | struct TupleStruct<T: [const] Trait>(T);
-   |                     ^^^^^^^^^
+   |                       ^^^^^^^
    |
    = note: this item cannot have `[const]` trait bounds
 
 error: `[const]` is not allowed here
-  --> $DIR/conditionally-const-invalid-places.rs:11:20
+  --> $DIR/conditionally-const-invalid-places.rs:11:22
    |
 LL | struct UnitStruct<T: [const] Trait>;
-   |                    ^^^^^^^^^
+   |                      ^^^^^^^
    |
    = note: this item cannot have `[const]` trait bounds
 
 error: `[const]` is not allowed here
-  --> $DIR/conditionally-const-invalid-places.rs:14:12
+  --> $DIR/conditionally-const-invalid-places.rs:14:14
    |
 LL | enum Enum<T: [const] Trait> { Variant(T) }
-   |            ^^^^^^^^^
+   |              ^^^^^^^
    |
    = note: this item cannot have `[const]` trait bounds
 
 error: `[const]` is not allowed here
-  --> $DIR/conditionally-const-invalid-places.rs:16:14
+  --> $DIR/conditionally-const-invalid-places.rs:16:16
    |
 LL | union Union<T: [const] Trait> { field: T }
-   |              ^^^^^^^^^
+   |                ^^^^^^^
    |
    = note: this item cannot have `[const]` trait bounds
 
 error: `[const]` is not allowed here
-  --> $DIR/conditionally-const-invalid-places.rs:19:12
+  --> $DIR/conditionally-const-invalid-places.rs:19:14
    |
 LL | type Type<T: [const] Trait> = T;
-   |            ^^^^^^^^^
+   |              ^^^^^^^
    |
    = note: this item cannot have `[const]` trait bounds
 
 error: `[const]` is not allowed here
-  --> $DIR/conditionally-const-invalid-places.rs:21:17
+  --> $DIR/conditionally-const-invalid-places.rs:21:19
    |
 LL | const CONSTANT<T: [const] Trait>: () = ();
-   |                 ^^^^^^^^^
+   |                   ^^^^^^^
    |
    = note: this item cannot have `[const]` trait bounds
 
 error: `[const]` is not allowed here
-  --> $DIR/conditionally-const-invalid-places.rs:25:16
+  --> $DIR/conditionally-const-invalid-places.rs:25:18
    |
 LL |     type Type<T: [const] Trait>: [const] Trait;
-   |                ^^^^^^^^^
+   |                  ^^^^^^^
    |
 note: associated types in non-`#[const_trait]` traits cannot have `[const]` trait bounds
   --> $DIR/conditionally-const-invalid-places.rs:25:5
@@ -79,10 +79,10 @@ LL |     type Type<T: [const] Trait>: [const] Trait;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: `[const]` is not allowed here
-  --> $DIR/conditionally-const-invalid-places.rs:25:32
+  --> $DIR/conditionally-const-invalid-places.rs:25:34
    |
 LL |     type Type<T: [const] Trait>: [const] Trait;
-   |                                ^^^^^^^^^
+   |                                  ^^^^^^^
    |
 note: associated types in non-`#[const_trait]` traits cannot have `[const]` trait bounds
   --> $DIR/conditionally-const-invalid-places.rs:25:5
@@ -91,10 +91,10 @@ LL |     type Type<T: [const] Trait>: [const] Trait;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: `[const]` is not allowed here
-  --> $DIR/conditionally-const-invalid-places.rs:28:28
+  --> $DIR/conditionally-const-invalid-places.rs:28:30
    |
 LL |     fn non_const_function<T: [const] Trait>();
-   |                            ^^^^^^^^^
+   |                              ^^^^^^^
    |
 note: this function is not `const`, so it cannot have `[const]` trait bounds
   --> $DIR/conditionally-const-invalid-places.rs:28:8
@@ -103,18 +103,18 @@ LL |     fn non_const_function<T: [const] Trait>();
    |        ^^^^^^^^^^^^^^^^^^
 
 error: `[const]` is not allowed here
-  --> $DIR/conditionally-const-invalid-places.rs:29:21
+  --> $DIR/conditionally-const-invalid-places.rs:29:23
    |
 LL |     const CONSTANT<T: [const] Trait>: ();
-   |                     ^^^^^^^^^
+   |                       ^^^^^^^
    |
    = note: this item cannot have `[const]` trait bounds
 
 error: `[const]` is not allowed here
-  --> $DIR/conditionally-const-invalid-places.rs:34:16
+  --> $DIR/conditionally-const-invalid-places.rs:34:18
    |
 LL |     type Type<T: [const] Trait> = ();
-   |                ^^^^^^^^^
+   |                  ^^^^^^^
    |
 note: associated types in non-const impls cannot have `[const]` trait bounds
   --> $DIR/conditionally-const-invalid-places.rs:34:5
@@ -123,10 +123,10 @@ LL |     type Type<T: [const] Trait> = ();
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: `[const]` is not allowed here
-  --> $DIR/conditionally-const-invalid-places.rs:36:28
+  --> $DIR/conditionally-const-invalid-places.rs:36:30
    |
 LL |     fn non_const_function<T: [const] Trait>() {}
-   |                            ^^^^^^^^^
+   |                              ^^^^^^^
    |
 note: this function is not `const`, so it cannot have `[const]` trait bounds
   --> $DIR/conditionally-const-invalid-places.rs:36:8
@@ -135,18 +135,18 @@ LL |     fn non_const_function<T: [const] Trait>() {}
    |        ^^^^^^^^^^^^^^^^^^
 
 error: `[const]` is not allowed here
-  --> $DIR/conditionally-const-invalid-places.rs:37:21
+  --> $DIR/conditionally-const-invalid-places.rs:37:23
    |
 LL |     const CONSTANT<T: [const] Trait>: () = ();
-   |                     ^^^^^^^^^
+   |                       ^^^^^^^
    |
    = note: this item cannot have `[const]` trait bounds
 
 error: `[const]` is not allowed here
-  --> $DIR/conditionally-const-invalid-places.rs:44:16
+  --> $DIR/conditionally-const-invalid-places.rs:44:18
    |
 LL |     type Type<T: [const] Trait> = ();
-   |                ^^^^^^^^^
+   |                  ^^^^^^^
    |
 note: inherent associated types cannot have `[const]` trait bounds
   --> $DIR/conditionally-const-invalid-places.rs:44:5
@@ -155,10 +155,10 @@ LL |     type Type<T: [const] Trait> = ();
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: `[const]` is not allowed here
-  --> $DIR/conditionally-const-invalid-places.rs:46:28
+  --> $DIR/conditionally-const-invalid-places.rs:46:30
    |
 LL |     fn non_const_function<T: [const] Trait>() {}
-   |                            ^^^^^^^^^
+   |                              ^^^^^^^
    |
 note: this function is not `const`, so it cannot have `[const]` trait bounds
   --> $DIR/conditionally-const-invalid-places.rs:46:8
@@ -167,18 +167,18 @@ LL |     fn non_const_function<T: [const] Trait>() {}
    |        ^^^^^^^^^^^^^^^^^^
 
 error: `[const]` is not allowed here
-  --> $DIR/conditionally-const-invalid-places.rs:47:21
+  --> $DIR/conditionally-const-invalid-places.rs:47:23
    |
 LL |     const CONSTANT<T: [const] Trait>: () = ();
-   |                     ^^^^^^^^^
+   |                       ^^^^^^^
    |
    = note: this item cannot have `[const]` trait bounds
 
 error: `[const]` is not allowed here
-  --> $DIR/conditionally-const-invalid-places.rs:52:13
+  --> $DIR/conditionally-const-invalid-places.rs:52:15
    |
 LL | trait Child0: [const] Trait {}
-   |             ^^^^^^^^^
+   |               ^^^^^^^
    |
 note: this trait is not a `#[const_trait]`, so it cannot have `[const]` trait bounds
   --> $DIR/conditionally-const-invalid-places.rs:52:1
@@ -187,10 +187,10 @@ LL | trait Child0: [const] Trait {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: `[const]` is not allowed here
-  --> $DIR/conditionally-const-invalid-places.rs:53:24
+  --> $DIR/conditionally-const-invalid-places.rs:53:26
    |
 LL | trait Child1 where Self: [const] Trait {}
-   |                        ^^^^^^^^^
+   |                          ^^^^^^^
    |
 note: this trait is not a `#[const_trait]`, so it cannot have `[const]` trait bounds
   --> $DIR/conditionally-const-invalid-places.rs:53:1
@@ -199,10 +199,10 @@ LL | trait Child1 where Self: [const] Trait {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: `[const]` is not allowed here
-  --> $DIR/conditionally-const-invalid-places.rs:56:7
+  --> $DIR/conditionally-const-invalid-places.rs:56:9
    |
 LL | impl<T: [const] Trait> Trait for T {}
-   |       ^^^^^^^^^
+   |         ^^^^^^^
    |
 note: this impl is not `const`, so it cannot have `[const]` trait bounds
   --> $DIR/conditionally-const-invalid-places.rs:56:1
@@ -211,10 +211,10 @@ LL | impl<T: [const] Trait> Trait for T {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: `[const]` is not allowed here
-  --> $DIR/conditionally-const-invalid-places.rs:59:7
+  --> $DIR/conditionally-const-invalid-places.rs:59:9
    |
 LL | impl<T: [const] Trait> Struct<T> {}
-   |       ^^^^^^^^^
+   |         ^^^^^^^
    |
 note: inherent impls cannot have `[const]` trait bounds
   --> $DIR/conditionally-const-invalid-places.rs:59:1

tests/ui/traits/const-traits/const-bound-on-not-const-associated-fn.stderr

@@ -1,8 +1,8 @@
 error: `[const]` is not allowed here
-  --> $DIR/const-bound-on-not-const-associated-fn.rs:11:38
+  --> $DIR/const-bound-on-not-const-associated-fn.rs:11:40
    |
 LL |     fn do_something_else() where Self: [const] MyTrait;
-   |                                      ^^^^^^^^^
+   |                                        ^^^^^^^
    |
 note: this function is not `const`, so it cannot have `[const]` trait bounds
   --> $DIR/const-bound-on-not-const-associated-fn.rs:11:8
@@ -11,10 +11,10 @@ LL |     fn do_something_else() where Self: [const] MyTrait;
    |        ^^^^^^^^^^^^^^^^^
 
 error: `[const]` is not allowed here
-  --> $DIR/const-bound-on-not-const-associated-fn.rs:22:30
+  --> $DIR/const-bound-on-not-const-associated-fn.rs:22:32
    |
 LL |     pub fn foo(&self) where T: [const] MyTrait {
-   |                              ^^^^^^^^^
+   |                                ^^^^^^^
    |
 note: this function is not `const`, so it cannot have `[const]` trait bounds
   --> $DIR/const-bound-on-not-const-associated-fn.rs:22:12

tests/ui/traits/const-traits/const-bounds-non-const-trait.stderr

@@ -1,8 +1,8 @@
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/const-bounds-non-const-trait.rs:6:19
+  --> $DIR/const-bounds-non-const-trait.rs:6:21
    |
 LL | const fn perform<T: [const] NonConst>() {}
-   |                   ^^^^^^^^^ can't be applied to `NonConst`
+   |                     ^^^^^^^ can't be applied to `NonConst`
    |
 help: mark `NonConst` as `#[const_trait]` to allow it to have `const` implementations
    |
@@ -10,10 +10,10 @@ LL | #[const_trait] trait NonConst {}
    | ++++++++++++++
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/const-bounds-non-const-trait.rs:6:19
+  --> $DIR/const-bounds-non-const-trait.rs:6:21
    |
 LL | const fn perform<T: [const] NonConst>() {}
-   |                   ^^^^^^^^^ can't be applied to `NonConst`
+   |                     ^^^^^^^ can't be applied to `NonConst`
    |
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 help: mark `NonConst` as `#[const_trait]` to allow it to have `const` implementations

tests/ui/traits/const-traits/const-closure-parse-not-item.stderr

@@ -1,27 +1,27 @@
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/const-closure-parse-not-item.rs:7:20
+  --> $DIR/const-closure-parse-not-item.rs:7:25
    |
 LL | const fn test() -> impl [const] Fn() {
-   |                    ^^^^^^^^^^^^ can't be applied to `Fn`
+   |                         ^^^^^^^ can't be applied to `Fn`
    |
 note: `Fn` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/const-closure-parse-not-item.rs:7:20
+  --> $DIR/const-closure-parse-not-item.rs:7:25
    |
 LL | const fn test() -> impl [const] Fn() {
-   |                    ^^^^^^^^^^^^ can't be applied to `Fn`
+   |                         ^^^^^^^ can't be applied to `Fn`
    |
 note: `Fn` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/const-closure-parse-not-item.rs:7:20
+  --> $DIR/const-closure-parse-not-item.rs:7:25
    |
 LL | const fn test() -> impl [const] Fn() {
-   |                    ^^^^^^^^^^^^ can't be applied to `Fn`
+   |                         ^^^^^^^ can't be applied to `Fn`
    |
 note: `Fn` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL

tests/ui/traits/const-traits/const-closure-trait-method-fail.stderr

@@ -1,17 +1,17 @@
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/const-closure-trait-method-fail.rs:14:30
+  --> $DIR/const-closure-trait-method-fail.rs:14:32
    |
 LL | const fn need_const_closure<T: [const] FnOnce(()) -> i32>(x: T) -> i32 {
-   |                              ^^^^^^^^^ can't be applied to `FnOnce`
+   |                                ^^^^^^^ can't be applied to `FnOnce`
    |
 note: `FnOnce` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/const-closure-trait-method-fail.rs:14:30
+  --> $DIR/const-closure-trait-method-fail.rs:14:32
    |
 LL | const fn need_const_closure<T: [const] FnOnce(()) -> i32>(x: T) -> i32 {
-   |                              ^^^^^^^^^ can't be applied to `FnOnce`
+   |                                ^^^^^^^ can't be applied to `FnOnce`
    |
 note: `FnOnce` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL

tests/ui/traits/const-traits/const-closure-trait-method.stderr

@@ -1,17 +1,17 @@
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/const-closure-trait-method.rs:14:30
+  --> $DIR/const-closure-trait-method.rs:14:32
    |
 LL | const fn need_const_closure<T: [const] FnOnce(()) -> i32>(x: T) -> i32 {
-   |                              ^^^^^^^^^ can't be applied to `FnOnce`
+   |                                ^^^^^^^ can't be applied to `FnOnce`
    |
 note: `FnOnce` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/const-closure-trait-method.rs:14:30
+  --> $DIR/const-closure-trait-method.rs:14:32
    |
 LL | const fn need_const_closure<T: [const] FnOnce(()) -> i32>(x: T) -> i32 {
-   |                              ^^^^^^^^^ can't be applied to `FnOnce`
+   |                                ^^^^^^^ can't be applied to `FnOnce`
    |
 note: `FnOnce` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL

tests/ui/traits/const-traits/const-closures.stderr

@@ -1,74 +1,74 @@
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/const-closures.rs:8:10
+  --> $DIR/const-closures.rs:8:12
    |
 LL |         F: [const] FnOnce() -> u8,
-   |          ^^^^^^^^^ can't be applied to `FnOnce`
+   |            ^^^^^^^ can't be applied to `FnOnce`
    |
 note: `FnOnce` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/const-closures.rs:9:10
+  --> $DIR/const-closures.rs:9:12
    |
 LL |         F: [const] FnMut() -> u8,
-   |          ^^^^^^^^^ can't be applied to `FnMut`
+   |            ^^^^^^^ can't be applied to `FnMut`
    |
 note: `FnMut` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/const-closures.rs:10:10
+  --> $DIR/const-closures.rs:10:12
    |
 LL |         F: [const] Fn() -> u8,
-   |          ^^^^^^^^^ can't be applied to `Fn`
+   |            ^^^^^^^ can't be applied to `Fn`
    |
 note: `Fn` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/const-closures.rs:8:10
+  --> $DIR/const-closures.rs:8:12
    |
 LL |         F: [const] FnOnce() -> u8,
-   |          ^^^^^^^^^ can't be applied to `FnOnce`
+   |            ^^^^^^^ can't be applied to `FnOnce`
    |
 note: `FnOnce` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/const-closures.rs:9:10
+  --> $DIR/const-closures.rs:9:12
    |
 LL |         F: [const] FnMut() -> u8,
-   |          ^^^^^^^^^ can't be applied to `FnMut`
+   |            ^^^^^^^ can't be applied to `FnMut`
    |
 note: `FnMut` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/const-closures.rs:10:10
+  --> $DIR/const-closures.rs:10:12
    |
 LL |         F: [const] Fn() -> u8,
-   |          ^^^^^^^^^ can't be applied to `Fn`
+   |            ^^^^^^^ can't be applied to `Fn`
    |
 note: `Fn` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/const-closures.rs:23:18
+  --> $DIR/const-closures.rs:23:20
    |
 LL | const fn answer<F: [const] Fn() -> u8>(f: &F) -> u8 {
-   |                  ^^^^^^^^^ can't be applied to `Fn`
+   |                    ^^^^^^^ can't be applied to `Fn`
    |
 note: `Fn` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/const-closures.rs:23:18
+  --> $DIR/const-closures.rs:23:20
    |
 LL | const fn answer<F: [const] Fn() -> u8>(f: &F) -> u8 {
-   |                  ^^^^^^^^^ can't be applied to `Fn`
+   |                    ^^^^^^^ can't be applied to `Fn`
    |
 note: `Fn` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL

tests/ui/traits/const-traits/const-trait-bounds-trait-objects.stderr

@@ -5,10 +5,10 @@ LL |     let _: &dyn const Trait;
    |                 ^^^^^^^^^^^
 
 error: `[const]` is not allowed here
-  --> $DIR/const-trait-bounds-trait-objects.rs:10:13
+  --> $DIR/const-trait-bounds-trait-objects.rs:10:17
    |
 LL |     let _: &dyn [const] Trait;
-   |             ^^^^^^^^^^^
+   |                 ^^^^^^^
    |
    = note: trait objects cannot have `[const]` trait bounds
 
@@ -19,10 +19,10 @@ LL | const fn handle(_: &dyn const NonConst) {}
    |                         ^^^^^^^^^^^^^^
 
 error: `[const]` is not allowed here
-  --> $DIR/const-trait-bounds-trait-objects.rs:17:19
+  --> $DIR/const-trait-bounds-trait-objects.rs:17:23
    |
 LL | const fn take(_: &dyn [const] NonConst) {}
-   |                   ^^^^^^^^^^^
+   |                       ^^^^^^^
    |
    = note: trait objects cannot have `[const]` trait bounds
 

tests/ui/traits/const-traits/feature-gate.stock.stderr

@@ -9,10 +9,10 @@ LL | impl const T for S {}
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
 error[E0658]: const trait impls are experimental
-  --> $DIR/feature-gate.rs:13:13
+  --> $DIR/feature-gate.rs:13:15
    |
 LL | const fn f<A: [const] T>() {}
-   |             ^^^^^^^^^
+   |               ^^^^^^^
    |
    = note: see issue #67792 <https://github.com/rust-lang/rust/issues/67792> for more information
    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
@@ -29,10 +29,10 @@ LL | fn g<A: const T>() {}
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
 error[E0658]: const trait impls are experimental
-  --> $DIR/feature-gate.rs:18:12
+  --> $DIR/feature-gate.rs:18:17
    |
 LL | discard! { impl [const] T }
-   |            ^^^^^^^^^^^^
+   |                 ^^^^^^^
    |
    = note: see issue #67792 <https://github.com/rust-lang/rust/issues/67792> for more information
    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable

tests/ui/traits/const-traits/ice-112822-expected-type-for-param.stderr

@@ -9,29 +9,29 @@ LL |     const move || {
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/ice-112822-expected-type-for-param.rs:3:20
+  --> $DIR/ice-112822-expected-type-for-param.rs:3:25
    |
 LL | const fn test() -> impl [const] Fn() {
-   |                    ^^^^^^^^^^^^ can't be applied to `Fn`
+   |                         ^^^^^^^ can't be applied to `Fn`
    |
 note: `Fn` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/ice-112822-expected-type-for-param.rs:3:20
+  --> $DIR/ice-112822-expected-type-for-param.rs:3:25
    |
 LL | const fn test() -> impl [const] Fn() {
-   |                    ^^^^^^^^^^^^ can't be applied to `Fn`
+   |                         ^^^^^^^ can't be applied to `Fn`
    |
 note: `Fn` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/ice-112822-expected-type-for-param.rs:3:20
+  --> $DIR/ice-112822-expected-type-for-param.rs:3:25
    |
 LL | const fn test() -> impl [const] Fn() {
-   |                    ^^^^^^^^^^^^ can't be applied to `Fn`
+   |                         ^^^^^^^ can't be applied to `Fn`
    |
 note: `Fn` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL

tests/ui/traits/const-traits/ice-123664-unexpected-bound-var.stderr

@@ -1,17 +1,17 @@
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/ice-123664-unexpected-bound-var.rs:4:25
+  --> $DIR/ice-123664-unexpected-bound-var.rs:4:27
    |
 LL | const fn with_positive<F: [const] Fn()>() {}
-   |                         ^^^^^^^^^ can't be applied to `Fn`
+   |                           ^^^^^^^ can't be applied to `Fn`
    |
 note: `Fn` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/ice-123664-unexpected-bound-var.rs:4:25
+  --> $DIR/ice-123664-unexpected-bound-var.rs:4:27
    |
 LL | const fn with_positive<F: [const] Fn()>() {}
-   |                         ^^^^^^^^^ can't be applied to `Fn`
+   |                           ^^^^^^^ can't be applied to `Fn`
    |
 note: `Fn` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/ops/function.rs:LL:COL

tests/ui/traits/const-traits/non-const-op-in-closure-in-const.stderr

@@ -1,17 +1,17 @@
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/non-const-op-in-closure-in-const.rs:10:42
+  --> $DIR/non-const-op-in-closure-in-const.rs:10:44
    |
 LL | impl<A, B> const Convert<B> for A where B: [const] From<A> {
-   |                                          ^^^^^^^^^ can't be applied to `From`
+   |                                            ^^^^^^^ can't be applied to `From`
    |
 note: `From` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/convert/mod.rs:LL:COL
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/non-const-op-in-closure-in-const.rs:10:42
+  --> $DIR/non-const-op-in-closure-in-const.rs:10:44
    |
 LL | impl<A, B> const Convert<B> for A where B: [const] From<A> {
-   |                                          ^^^^^^^^^ can't be applied to `From`
+   |                                            ^^^^^^^ can't be applied to `From`
    |
 note: `From` can't be used with `[const]` because it isn't annotated with `#[const_trait]`
   --> $SRC_DIR/core/src/convert/mod.rs:LL:COL

tests/ui/traits/const-traits/super-traits-fail-2.nn.stderr

@@ -1,8 +1,8 @@
 error: `[const]` is not allowed here
-  --> $DIR/super-traits-fail-2.rs:11:10
+  --> $DIR/super-traits-fail-2.rs:11:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^
+   |            ^^^^^^^
    |
 note: this trait is not a `#[const_trait]`, so it cannot have `[const]` trait bounds
   --> $DIR/super-traits-fail-2.rs:11:1
@@ -11,10 +11,10 @@ LL | trait Bar: [const] Foo {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-2.rs:11:10
+  --> $DIR/super-traits-fail-2.rs:11:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^ can't be applied to `Foo`
+   |            ^^^^^^^ can't be applied to `Foo`
    |
 help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations
    |
@@ -22,10 +22,10 @@ LL | #[const_trait] trait Foo {
    | ++++++++++++++
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-2.rs:11:10
+  --> $DIR/super-traits-fail-2.rs:11:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^ can't be applied to `Foo`
+   |            ^^^^^^^ can't be applied to `Foo`
    |
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations
@@ -34,10 +34,10 @@ LL | #[const_trait] trait Foo {
    | ++++++++++++++
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-2.rs:11:10
+  --> $DIR/super-traits-fail-2.rs:11:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^ can't be applied to `Foo`
+   |            ^^^^^^^ can't be applied to `Foo`
    |
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations

tests/ui/traits/const-traits/super-traits-fail-2.ny.stderr

@@ -1,8 +1,8 @@
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-2.rs:11:10
+  --> $DIR/super-traits-fail-2.rs:11:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^ can't be applied to `Foo`
+   |            ^^^^^^^ can't be applied to `Foo`
    |
 help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations
    |
@@ -10,10 +10,10 @@ LL | #[const_trait] trait Foo {
    | ++++++++++++++
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-2.rs:11:10
+  --> $DIR/super-traits-fail-2.rs:11:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^ can't be applied to `Foo`
+   |            ^^^^^^^ can't be applied to `Foo`
    |
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations
@@ -22,10 +22,10 @@ LL | #[const_trait] trait Foo {
    | ++++++++++++++
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-2.rs:11:10
+  --> $DIR/super-traits-fail-2.rs:11:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^ can't be applied to `Foo`
+   |            ^^^^^^^ can't be applied to `Foo`
    |
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations
@@ -34,10 +34,10 @@ LL | #[const_trait] trait Foo {
    | ++++++++++++++
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-2.rs:11:10
+  --> $DIR/super-traits-fail-2.rs:11:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^ can't be applied to `Foo`
+   |            ^^^^^^^ can't be applied to `Foo`
    |
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations
@@ -46,10 +46,10 @@ LL | #[const_trait] trait Foo {
    | ++++++++++++++
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-2.rs:11:10
+  --> $DIR/super-traits-fail-2.rs:11:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^ can't be applied to `Foo`
+   |            ^^^^^^^ can't be applied to `Foo`
    |
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations

tests/ui/traits/const-traits/super-traits-fail-2.yn.stderr

@@ -1,8 +1,8 @@
 error: `[const]` is not allowed here
-  --> $DIR/super-traits-fail-2.rs:11:10
+  --> $DIR/super-traits-fail-2.rs:11:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^
+   |            ^^^^^^^
    |
 note: this trait is not a `#[const_trait]`, so it cannot have `[const]` trait bounds
   --> $DIR/super-traits-fail-2.rs:11:1

tests/ui/traits/const-traits/super-traits-fail-3.nnn.stderr

@@ -1,8 +1,8 @@
 error: `[const]` is not allowed here
-  --> $DIR/super-traits-fail-3.rs:23:10
+  --> $DIR/super-traits-fail-3.rs:23:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^
+   |            ^^^^^^^
    |
 note: this trait is not a `#[const_trait]`, so it cannot have `[const]` trait bounds
   --> $DIR/super-traits-fail-3.rs:23:1
@@ -11,30 +11,30 @@ LL | trait Bar: [const] Foo {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error[E0658]: const trait impls are experimental
-  --> $DIR/super-traits-fail-3.rs:23:10
+  --> $DIR/super-traits-fail-3.rs:23:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^
+   |            ^^^^^^^
    |
    = note: see issue #67792 <https://github.com/rust-lang/rust/issues/67792> for more information
    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
 error[E0658]: const trait impls are experimental
-  --> $DIR/super-traits-fail-3.rs:32:15
+  --> $DIR/super-traits-fail-3.rs:32:17
    |
 LL | const fn foo<T: [const] Bar>(x: &T) {
-   |               ^^^^^^^^^
+   |                 ^^^^^^^
    |
    = note: see issue #67792 <https://github.com/rust-lang/rust/issues/67792> for more information
    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-3.rs:23:10
+  --> $DIR/super-traits-fail-3.rs:23:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^ can't be applied to `Foo`
+   |            ^^^^^^^ can't be applied to `Foo`
    |
 help: enable `#![feature(const_trait_impl)]` in your crate and mark `Foo` as `#[const_trait]` to allow it to have `const` implementations
    |
@@ -42,10 +42,10 @@ LL | #[const_trait] trait Foo {
    | ++++++++++++++
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-3.rs:23:10
+  --> $DIR/super-traits-fail-3.rs:23:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^ can't be applied to `Foo`
+   |            ^^^^^^^ can't be applied to `Foo`
    |
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 help: enable `#![feature(const_trait_impl)]` in your crate and mark `Foo` as `#[const_trait]` to allow it to have `const` implementations
@@ -54,10 +54,10 @@ LL | #[const_trait] trait Foo {
    | ++++++++++++++
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-3.rs:23:10
+  --> $DIR/super-traits-fail-3.rs:23:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^ can't be applied to `Foo`
+   |            ^^^^^^^ can't be applied to `Foo`
    |
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 help: enable `#![feature(const_trait_impl)]` in your crate and mark `Foo` as `#[const_trait]` to allow it to have `const` implementations
@@ -66,10 +66,10 @@ LL | #[const_trait] trait Foo {
    | ++++++++++++++
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-3.rs:32:15
+  --> $DIR/super-traits-fail-3.rs:32:17
    |
 LL | const fn foo<T: [const] Bar>(x: &T) {
-   |               ^^^^^^^^^ can't be applied to `Bar`
+   |                 ^^^^^^^ can't be applied to `Bar`
    |
 help: enable `#![feature(const_trait_impl)]` in your crate and mark `Bar` as `#[const_trait]` to allow it to have `const` implementations
    |
@@ -77,10 +77,10 @@ LL | #[const_trait] trait Bar: [const] Foo {}
    | ++++++++++++++
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-3.rs:32:15
+  --> $DIR/super-traits-fail-3.rs:32:17
    |
 LL | const fn foo<T: [const] Bar>(x: &T) {
-   |               ^^^^^^^^^ can't be applied to `Bar`
+   |                 ^^^^^^^ can't be applied to `Bar`
    |
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 help: enable `#![feature(const_trait_impl)]` in your crate and mark `Bar` as `#[const_trait]` to allow it to have `const` implementations

tests/ui/traits/const-traits/super-traits-fail-3.nny.stderr

@@ -1,8 +1,8 @@
 error: `[const]` is not allowed here
-  --> $DIR/super-traits-fail-3.rs:23:10
+  --> $DIR/super-traits-fail-3.rs:23:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^
+   |            ^^^^^^^
    |
 note: this trait is not a `#[const_trait]`, so it cannot have `[const]` trait bounds
   --> $DIR/super-traits-fail-3.rs:23:1
@@ -11,30 +11,30 @@ LL | trait Bar: [const] Foo {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error[E0658]: const trait impls are experimental
-  --> $DIR/super-traits-fail-3.rs:23:10
+  --> $DIR/super-traits-fail-3.rs:23:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^
+   |            ^^^^^^^
    |
    = note: see issue #67792 <https://github.com/rust-lang/rust/issues/67792> for more information
    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
 error[E0658]: const trait impls are experimental
-  --> $DIR/super-traits-fail-3.rs:32:15
+  --> $DIR/super-traits-fail-3.rs:32:17
    |
 LL | const fn foo<T: [const] Bar>(x: &T) {
-   |               ^^^^^^^^^
+   |                 ^^^^^^^
    |
    = note: see issue #67792 <https://github.com/rust-lang/rust/issues/67792> for more information
    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-3.rs:23:10
+  --> $DIR/super-traits-fail-3.rs:23:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^ can't be applied to `Foo`
+   |            ^^^^^^^ can't be applied to `Foo`
    |
 help: enable `#![feature(const_trait_impl)]` in your crate and mark `Foo` as `#[const_trait]` to allow it to have `const` implementations
    |
@@ -42,10 +42,10 @@ LL | #[const_trait] trait Foo {
    | ++++++++++++++
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-3.rs:23:10
+  --> $DIR/super-traits-fail-3.rs:23:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^ can't be applied to `Foo`
+   |            ^^^^^^^ can't be applied to `Foo`
    |
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 help: enable `#![feature(const_trait_impl)]` in your crate and mark `Foo` as `#[const_trait]` to allow it to have `const` implementations
@@ -54,10 +54,10 @@ LL | #[const_trait] trait Foo {
    | ++++++++++++++
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-3.rs:23:10
+  --> $DIR/super-traits-fail-3.rs:23:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^ can't be applied to `Foo`
+   |            ^^^^^^^ can't be applied to `Foo`
    |
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 help: enable `#![feature(const_trait_impl)]` in your crate and mark `Foo` as `#[const_trait]` to allow it to have `const` implementations
@@ -66,10 +66,10 @@ LL | #[const_trait] trait Foo {
    | ++++++++++++++
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-3.rs:32:15
+  --> $DIR/super-traits-fail-3.rs:32:17
    |
 LL | const fn foo<T: [const] Bar>(x: &T) {
-   |               ^^^^^^^^^ can't be applied to `Bar`
+   |                 ^^^^^^^ can't be applied to `Bar`
    |
 help: enable `#![feature(const_trait_impl)]` in your crate and mark `Bar` as `#[const_trait]` to allow it to have `const` implementations
    |
@@ -77,10 +77,10 @@ LL | #[const_trait] trait Bar: [const] Foo {}
    | ++++++++++++++
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-3.rs:32:15
+  --> $DIR/super-traits-fail-3.rs:32:17
    |
 LL | const fn foo<T: [const] Bar>(x: &T) {
-   |               ^^^^^^^^^ can't be applied to `Bar`
+   |                 ^^^^^^^ can't be applied to `Bar`
    |
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 help: enable `#![feature(const_trait_impl)]` in your crate and mark `Bar` as `#[const_trait]` to allow it to have `const` implementations

tests/ui/traits/const-traits/super-traits-fail-3.nyn.stderr

@@ -1,18 +1,18 @@
 error[E0658]: const trait impls are experimental
-  --> $DIR/super-traits-fail-3.rs:23:10
+  --> $DIR/super-traits-fail-3.rs:23:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^
+   |            ^^^^^^^
    |
    = note: see issue #67792 <https://github.com/rust-lang/rust/issues/67792> for more information
    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
 error[E0658]: const trait impls are experimental
-  --> $DIR/super-traits-fail-3.rs:32:15
+  --> $DIR/super-traits-fail-3.rs:32:17
    |
 LL | const fn foo<T: [const] Bar>(x: &T) {
-   |               ^^^^^^^^^
+   |                 ^^^^^^^
    |
    = note: see issue #67792 <https://github.com/rust-lang/rust/issues/67792> for more information
    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable

tests/ui/traits/const-traits/super-traits-fail-3.nyy.stderr

@@ -1,18 +1,18 @@
 error[E0658]: const trait impls are experimental
-  --> $DIR/super-traits-fail-3.rs:23:10
+  --> $DIR/super-traits-fail-3.rs:23:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^
+   |            ^^^^^^^
    |
    = note: see issue #67792 <https://github.com/rust-lang/rust/issues/67792> for more information
    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
 error[E0658]: const trait impls are experimental
-  --> $DIR/super-traits-fail-3.rs:32:15
+  --> $DIR/super-traits-fail-3.rs:32:17
    |
 LL | const fn foo<T: [const] Bar>(x: &T) {
-   |               ^^^^^^^^^
+   |                 ^^^^^^^
    |
    = note: see issue #67792 <https://github.com/rust-lang/rust/issues/67792> for more information
    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable

tests/ui/traits/const-traits/super-traits-fail-3.ynn.stderr

@@ -1,8 +1,8 @@
 error: `[const]` is not allowed here
-  --> $DIR/super-traits-fail-3.rs:23:10
+  --> $DIR/super-traits-fail-3.rs:23:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^
+   |            ^^^^^^^
    |
 note: this trait is not a `#[const_trait]`, so it cannot have `[const]` trait bounds
   --> $DIR/super-traits-fail-3.rs:23:1
@@ -11,10 +11,10 @@ LL | trait Bar: [const] Foo {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-3.rs:23:10
+  --> $DIR/super-traits-fail-3.rs:23:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^ can't be applied to `Foo`
+   |            ^^^^^^^ can't be applied to `Foo`
    |
 help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations
    |
@@ -22,10 +22,10 @@ LL | #[const_trait] trait Foo {
    | ++++++++++++++
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-3.rs:23:10
+  --> $DIR/super-traits-fail-3.rs:23:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^ can't be applied to `Foo`
+   |            ^^^^^^^ can't be applied to `Foo`
    |
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations
@@ -34,10 +34,10 @@ LL | #[const_trait] trait Foo {
    | ++++++++++++++
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-3.rs:23:10
+  --> $DIR/super-traits-fail-3.rs:23:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^ can't be applied to `Foo`
+   |            ^^^^^^^ can't be applied to `Foo`
    |
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations
@@ -46,10 +46,10 @@ LL | #[const_trait] trait Foo {
    | ++++++++++++++
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-3.rs:32:15
+  --> $DIR/super-traits-fail-3.rs:32:17
    |
 LL | const fn foo<T: [const] Bar>(x: &T) {
-   |               ^^^^^^^^^ can't be applied to `Bar`
+   |                 ^^^^^^^ can't be applied to `Bar`
    |
 help: mark `Bar` as `#[const_trait]` to allow it to have `const` implementations
    |
@@ -57,10 +57,10 @@ LL | #[const_trait] trait Bar: [const] Foo {}
    | ++++++++++++++
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-3.rs:32:15
+  --> $DIR/super-traits-fail-3.rs:32:17
    |
 LL | const fn foo<T: [const] Bar>(x: &T) {
-   |               ^^^^^^^^^ can't be applied to `Bar`
+   |                 ^^^^^^^ can't be applied to `Bar`
    |
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 help: mark `Bar` as `#[const_trait]` to allow it to have `const` implementations

tests/ui/traits/const-traits/super-traits-fail-3.yny.stderr

@@ -1,8 +1,8 @@
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-3.rs:23:10
+  --> $DIR/super-traits-fail-3.rs:23:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^ can't be applied to `Foo`
+   |            ^^^^^^^ can't be applied to `Foo`
    |
 help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations
    |
@@ -10,10 +10,10 @@ LL | #[const_trait] trait Foo {
    | ++++++++++++++
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-3.rs:23:10
+  --> $DIR/super-traits-fail-3.rs:23:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^ can't be applied to `Foo`
+   |            ^^^^^^^ can't be applied to `Foo`
    |
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations
@@ -22,10 +22,10 @@ LL | #[const_trait] trait Foo {
    | ++++++++++++++
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-3.rs:23:10
+  --> $DIR/super-traits-fail-3.rs:23:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^ can't be applied to `Foo`
+   |            ^^^^^^^ can't be applied to `Foo`
    |
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations
@@ -34,10 +34,10 @@ LL | #[const_trait] trait Foo {
    | ++++++++++++++
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-3.rs:23:10
+  --> $DIR/super-traits-fail-3.rs:23:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^ can't be applied to `Foo`
+   |            ^^^^^^^ can't be applied to `Foo`
    |
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations
@@ -46,10 +46,10 @@ LL | #[const_trait] trait Foo {
    | ++++++++++++++
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-3.rs:23:10
+  --> $DIR/super-traits-fail-3.rs:23:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^ can't be applied to `Foo`
+   |            ^^^^^^^ can't be applied to `Foo`
    |
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations

tests/ui/traits/const-traits/super-traits-fail-3.yyn.stderr

@@ -1,8 +1,8 @@
 error: `[const]` is not allowed here
-  --> $DIR/super-traits-fail-3.rs:23:10
+  --> $DIR/super-traits-fail-3.rs:23:12
    |
 LL | trait Bar: [const] Foo {}
-   |          ^^^^^^^^^
+   |            ^^^^^^^
    |
 note: this trait is not a `#[const_trait]`, so it cannot have `[const]` trait bounds
   --> $DIR/super-traits-fail-3.rs:23:1
@@ -11,10 +11,10 @@ LL | trait Bar: [const] Foo {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-3.rs:32:15
+  --> $DIR/super-traits-fail-3.rs:32:17
    |
 LL | const fn foo<T: [const] Bar>(x: &T) {
-   |               ^^^^^^^^^ can't be applied to `Bar`
+   |                 ^^^^^^^ can't be applied to `Bar`
    |
 help: mark `Bar` as `#[const_trait]` to allow it to have `const` implementations
    |
@@ -22,10 +22,10 @@ LL | #[const_trait] trait Bar: [const] Foo {}
    | ++++++++++++++
 
 error: `[const]` can only be applied to `#[const_trait]` traits
-  --> $DIR/super-traits-fail-3.rs:32:15
+  --> $DIR/super-traits-fail-3.rs:32:17
    |
 LL | const fn foo<T: [const] Bar>(x: &T) {
-   |               ^^^^^^^^^ can't be applied to `Bar`
+   |                 ^^^^^^^ can't be applied to `Bar`
    |
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 help: mark `Bar` as `#[const_trait]` to allow it to have `const` implementations

tests/ui/traits/const-traits/syntactical-unstable.stderr

@@ -2,9 +2,9 @@ error[E0658]: use of unstable const library feature `unstable`
   --> $DIR/syntactical-unstable.rs:13:20
    |
 LL | trait Foo: [const] MyTrait {
-   |          --------- ^^^^^^^
+   |            ------- ^^^^^^^
-   |          |
+   |            |
-   |          trait is not stable as const yet
+   |            trait is not stable as const yet
    |
    = help: add `#![feature(unstable)]` to the crate attributes to enable
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
@@ -13,9 +13,9 @@ error[E0658]: use of unstable const library feature `unstable`
   --> $DIR/syntactical-unstable.rs:19:45
    |
 LL | const fn where_clause<T>() where T: [const] MyTrait {}
-   |                                   --------- ^^^^^^^
+   |                                     ------- ^^^^^^^
-   |                                   |
+   |                                     |
-   |                                   trait is not stable as const yet
+   |                                     trait is not stable as const yet
    |
    = help: add `#![feature(unstable)]` to the crate attributes to enable
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
@@ -24,9 +24,9 @@ error[E0658]: use of unstable const library feature `unstable`
   --> $DIR/syntactical-unstable.rs:22:53
    |
 LL | const fn nested<T>() where T: Deref<Target: [const] MyTrait> {}
-   |                                           --------- ^^^^^^^
+   |                                             ------- ^^^^^^^
-   |                                           |
+   |                                             |
-   |                                           trait is not stable as const yet
+   |                                             trait is not stable as const yet
    |
    = help: add `#![feature(unstable)]` to the crate attributes to enable
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
@@ -35,9 +35,9 @@ error[E0658]: use of unstable const library feature `unstable`
   --> $DIR/syntactical-unstable.rs:25:33
    |
 LL | const fn rpit() -> impl [const] MyTrait { Local }
-   |                    ------------ ^^^^^^^
+   |                         ------- ^^^^^^^
-   |                    |
+   |                         |
-   |                    trait is not stable as const yet
+   |                         trait is not stable as const yet
    |
    = help: add `#![feature(unstable)]` to the crate attributes to enable
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
@@ -55,9 +55,9 @@ error[E0658]: use of unstable const library feature `unstable`
   --> $DIR/syntactical-unstable.rs:15:24
    |
 LL |     type Item: [const] MyTrait;
-   |              --------- ^^^^^^^
+   |                ------- ^^^^^^^
-   |              |
+   |                |
-   |              trait is not stable as const yet
+   |                trait is not stable as const yet
    |
    = help: add `#![feature(unstable)]` to the crate attributes to enable
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

tests/ui/traits/const-traits/trait-where-clause.stderr

@@ -1,8 +1,8 @@
 error: `[const]` is not allowed here
-  --> $DIR/trait-where-clause.rs:8:22
+  --> $DIR/trait-where-clause.rs:8:24
    |
 LL |     fn b() where Self: [const] Bar;
-   |                      ^^^^^^^^^
+   |                        ^^^^^^^
    |
 note: this function is not `const`, so it cannot have `[const]` trait bounds
   --> $DIR/trait-where-clause.rs:8:8
@@ -11,10 +11,10 @@ LL |     fn b() where Self: [const] Bar;
    |        ^
 
 error: `[const]` is not allowed here
-  --> $DIR/trait-where-clause.rs:10:11
+  --> $DIR/trait-where-clause.rs:10:13
    |
 LL |     fn c<T: [const] Bar>();
-   |           ^^^^^^^^^
+   |             ^^^^^^^
    |
 note: this function is not `const`, so it cannot have `[const]` trait bounds
   --> $DIR/trait-where-clause.rs:10:8