bless coherence test

Author: compiler-errors

tests/ui/specialization/specialization-default-items-drop-coherence.coherence.stderr

@@ -0,0 +1,12 @@
+error[E0119]: conflicting implementations of trait `Overlap` for type `u32`
+  --> $DIR/specialization-default-items-drop-coherence.rs:29:1
+   |
+LL | impl Overlap for u32 {
+   | -------------------- first implementation here
+...
+LL | impl Overlap for <u32 as Default>::Id {
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `u32`
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0119`.

tests/ui/specialization/specialization-default-items-drop-coherence.next.stderr

@@ -0,0 +1,12 @@
+error[E0119]: conflicting implementations of trait `Overlap` for type `u32`
+  --> $DIR/specialization-default-items-drop-coherence.rs:29:1
+   |
+LL | impl Overlap for u32 {
+   | -------------------- first implementation here
+...
+LL | impl Overlap for <u32 as Default>::Id {
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `u32`
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0119`.

tests/ui/specialization/specialization-default-items-drop-coherence.rs

@@ -1,5 +1,8 @@
-// check-pass
-// known-bug: #105782
+// revisions: classic coherence next
+//[next] compile-flags: -Ztrait-solver=next
+//[coherence] compile-flags: -Ztrait-solver=next-coherence
+//[classic] check-pass
+//[classic] known-bug: #105782
 
 // Should fail. Default items completely drop candidates instead of ambiguity,
 // which is unsound during coherence, since coherence requires completeness.
@@ -24,6 +27,8 @@ impl Overlap for u32 {
 }
 
 impl Overlap for <u32 as Default>::Id {
+   //[coherence]~^ ERROR conflicting implementations of trait `Overlap` for type `u32`
+   //[next]~^^ ERROR conflicting implementations of trait `Overlap` for type `u32`
    type Assoc = Box<usize>;
 }