Auto merge of #69649 - estebank:negative-impl-span, r=Centril

Tweak output for invalid negative impl errors

Follow up to #69722. Tweak negative impl errors emitted in the HIR:

```
error[E0192]: invalid negative impl
  --> $DIR/E0192.rs:9:6
   |
LL | impl !Trait for Foo { }
   |      ^^^^^^
   |
   = note: negative impls are only allowed for auto traits, like `Send` and `Sync`
```

src/test/ui/error-codes/E0192.stderr

@@ -1,8 +1,10 @@
-error[E0192]: negative impls are only allowed for auto traits (e.g., `Send` and `Sync`)
-  --> $DIR/E0192.rs:9:1
+error[E0192]: invalid negative impl
+  --> $DIR/E0192.rs:9:6
    |
 LL | impl !Trait for Foo { }
-   | ^^^^^^^^^^^^^^^^^^^^^^^
+   |      ^^^^^^
+   |
+   = note: negative impls are only allowed for auto traits, like `Send` and `Sync`
 
 error: aborting due to previous error
 

src/test/ui/specialization/defaultimpl/validation.rs

@@ -10,6 +10,6 @@ default unsafe impl Send for S {} //~ ERROR impls of auto traits cannot be defau
 default impl !Send for Z {} //~ ERROR impls of auto traits cannot be default
 
 trait Tr {}
-default impl !Tr for S {} //~ ERROR negative impls are only allowed for auto traits
+default impl !Tr for S {} //~ ERROR invalid negative impl
 
 fn main() {}

src/test/ui/specialization/defaultimpl/validation.stderr

@@ -9,22 +9,28 @@ LL | default impl S {}
    = note: only trait implementations may be annotated with `default`
 
 error: impls of auto traits cannot be default
-  --> $DIR/validation.rs:9:1
+  --> $DIR/validation.rs:9:21
    |
 LL | default unsafe impl Send for S {}
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   | -------             ^^^^ auto trait
+   | |
+   | default because of this
 
 error: impls of auto traits cannot be default
-  --> $DIR/validation.rs:10:1
+  --> $DIR/validation.rs:10:15
    |
 LL | default impl !Send for Z {}
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   | -------       ^^^^ auto trait
+   | |
+   | default because of this
 
-error[E0192]: negative impls are only allowed for auto traits (e.g., `Send` and `Sync`)
-  --> $DIR/validation.rs:13:1
+error[E0192]: invalid negative impl
+  --> $DIR/validation.rs:13:14
    |
 LL | default impl !Tr for S {}
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^
+   |              ^^^
+   |
+   = note: negative impls are only allowed for auto traits, like `Send` and `Sync`
 
 error: aborting due to 4 previous errors
 

src/test/ui/syntax-trait-polarity.rs

@@ -12,7 +12,7 @@ trait TestTrait {}
 unsafe impl !Send for TestType {}
 //~^ ERROR negative impls cannot be unsafe
 impl !TestTrait for TestType {}
-//~^ ERROR negative impls are only allowed for auto traits
+//~^ ERROR invalid negative impl
 
 struct TestType2<T>(T);
 
@@ -22,6 +22,6 @@ impl<T> !TestType2<T> {}
 unsafe impl<T> !Send for TestType2<T> {}
 //~^ ERROR negative impls cannot be unsafe
 impl<T> !TestTrait for TestType2<T> {}
-//~^ ERROR negative impls are only allowed for auto traits
+//~^ ERROR invalid negative impl
 
 fn main() {}

src/test/ui/syntax-trait-polarity.stderr

@@ -32,17 +32,21 @@ LL | unsafe impl<T> !Send for TestType2<T> {}
    | |              negative because of this
    | unsafe because of this
 
-error[E0192]: negative impls are only allowed for auto traits (e.g., `Send` and `Sync`)
-  --> $DIR/syntax-trait-polarity.rs:14:1
+error[E0192]: invalid negative impl
+  --> $DIR/syntax-trait-polarity.rs:14:6
    |
 LL | impl !TestTrait for TestType {}
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |      ^^^^^^^^^^
+   |
+   = note: negative impls are only allowed for auto traits, like `Send` and `Sync`
 
-error[E0192]: negative impls are only allowed for auto traits (e.g., `Send` and `Sync`)
-  --> $DIR/syntax-trait-polarity.rs:24:1
+error[E0192]: invalid negative impl
+  --> $DIR/syntax-trait-polarity.rs:24:9
    |
 LL | impl<T> !TestTrait for TestType2<T> {}
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |         ^^^^^^^^^^
+   |
+   = note: negative impls are only allowed for auto traits, like `Send` and `Sync`
 
 error: aborting due to 6 previous errors
 

src/test/ui/typeck/typeck-negative-impls-builtin.rs

@@ -7,6 +7,6 @@ trait TestTrait {
 }
 
 impl !TestTrait for TestType {}
-//~^ ERROR negative impls are only allowed for auto traits (e.g., `Send` and `Sync`)
+//~^ ERROR invalid negative impl
 
 fn main() {}

src/test/ui/typeck/typeck-negative-impls-builtin.stderr

@@ -1,8 +1,10 @@
-error[E0192]: negative impls are only allowed for auto traits (e.g., `Send` and `Sync`)
-  --> $DIR/typeck-negative-impls-builtin.rs:9:1
+error[E0192]: invalid negative impl
+  --> $DIR/typeck-negative-impls-builtin.rs:9:6
    |
 LL | impl !TestTrait for TestType {}
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |      ^^^^^^^^^^
+   |
+   = note: negative impls are only allowed for auto traits, like `Send` and `Sync`
 
 error: aborting due to previous error