Rollup merge of #136291 - lcnr:compare-mode, r=oli-obk

some test suite cleanups

found while checking `compare-mode next-solver`

r? `@oli-obk`

<sub> [lcnr](https://github.com/rust-lang/rust/commits?author=lcnr) authored and JJ_EMPTY_STRING committed </sub>

tests/ui/generic-associated-types/issue-90014-tait2.rs

@@ -3,8 +3,6 @@
 //! Unfortunately we don't even reach opaque type collection, as we ICE in typeck before that.
 //! See #109281 for the original report.
 //@ edition:2018
-//@ error-pattern: expected generic lifetime parameter, found `'a`
-
 #![feature(type_alias_impl_trait)]
 
 use std::future::Future;
@@ -24,6 +22,7 @@ impl<'x, T: 'x> Trait<'x> for (T,) {
 impl Foo<'_> {
     fn make_fut(&self) -> Box<dyn for<'a> Trait<'a, Thing = Fut<'a>>> {
         Box::new((async { () },))
+        //~^ ERROR expected generic lifetime parameter, found `'a`
     }
 }
 

tests/ui/generic-associated-types/issue-90014-tait2.stderr

@@ -1,5 +1,5 @@
 error[E0792]: expected generic lifetime parameter, found `'a`
-  --> $DIR/issue-90014-tait2.rs:26:9
+  --> $DIR/issue-90014-tait2.rs:24:9
    |
 LL | type Fut<'a> = impl Future<Output = ()>;
    |          -- this generic parameter must be used with a generic lifetime parameter

tests/ui/traits/sized-coniductive.rs

@@ -1,14 +0,0 @@
-//@ check-pass
-// https://github.com/rust-lang/rust/issues/129541
-
-#[derive(Clone)]
-struct Test {
-    field: std::borrow::Cow<'static, [Self]>,
-}
-
-#[derive(Clone)]
-struct Hello {
-    a: <[Hello] as std::borrow::ToOwned>::Owned,
-}
-
-fn main(){}

tests/ui/traits/solver-cycles/129541-recursive-struct-and-array-impl.rs

@@ -1,23 +0,0 @@
-// Regression test for #129541
-
-//@ check-pass
-
-trait Bound {}
-trait Normalize {
-    type Assoc;
-}
-
-impl<T: Bound> Normalize for T {
-    type Assoc = T;
-}
-
-impl<T: Bound> Normalize for [T] {
-    type Assoc = T;
-}
-
-impl Bound for Hello {}
-struct Hello {
-    a: <[Hello] as Normalize>::Assoc,
-}
-
-fn main() {}

tests/ui/traits/solver-cycles/129541-recursive-struct.rs

@@ -1,5 +1,6 @@
 // Regression test for #129541
 
+//@ revisions: unique multiple
 //@ check-pass
 
 trait Bound {}
@@ -7,6 +8,10 @@ trait Normalize {
     type Assoc;
 }
 
+#[cfg(multiple)]
+impl<T: Bound> Normalize for T {
+    type Assoc = T;
+}
 impl<T: Bound> Normalize for [T] {
     type Assoc = T;
 }

tests/ui/wf/wf-trait-default-fn-ret.rs

@@ -1,5 +1,4 @@
-// Check that we test WF conditions for fn arguments. Because the
-// current code is so goofy, this is only a warning for now.
+// Check that we test WF conditions for fn arguments.
 
 #![feature(rustc_attrs)]
 #![allow(dead_code)]

tests/ui/wf/wf-trait-default-fn-ret.stderr

@@ -1,11 +1,11 @@
 error[E0277]: the trait bound `Self: Eq` is not satisfied
-  --> $DIR/wf-trait-default-fn-ret.rs:11:22
+  --> $DIR/wf-trait-default-fn-ret.rs:10:22
    |
 LL |     fn bar(&self) -> Bar<Self> {
    |                      ^^^^^^^^^ the trait `Eq` is not implemented for `Self`
    |
 note: required by a bound in `Bar`
-  --> $DIR/wf-trait-default-fn-ret.rs:8:14
+  --> $DIR/wf-trait-default-fn-ret.rs:7:14
    |
 LL | struct Bar<T:Eq+?Sized> { value: Box<T> }
    |              ^^ required by this bound in `Bar`