Merging upstream version 1.76.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 0 insertions, 32 deletions

diff --git a/tests/ui/traits/new-solver/dont-loop-fulfill-on-region-constraints.rs b/tests/ui/traits/new-solver/dont-loop-fulfill-on-region-constraints.rs
deleted file mode 100644
index b241e3bf8..000000000
--- a/tests/ui/traits/new-solver/dont-loop-fulfill-on-region-constraints.rs
+++ /dev/null
@@ -1,32 +0,0 @@
-// compile-flags: -Ztrait-solver=next
-// check-pass
-
-trait Eq<'a, 'b, T> {}
-
-trait Ambig {}
-impl Ambig for () {}
-
-impl<'a, T> Eq<'a, 'a, T> for () where T: Ambig {}
-
-fn eq<'a, 'b, T>(t: T)
-where
-    (): Eq<'a, 'b, T>,
-{
-}
-
-fn test<'r>() {
-    let mut x = Default::default();
-
-    // When we evaluate `(): Eq<'r, 'r, ?0>` we uniquify the regions.
-    // That leads us to evaluate `(): Eq<'?0, '?1, ?0>`. The response of this
-    // will be ambiguous (because `?0: Ambig` is ambig) and also not an "identity"
-    // response, since the region constraints will contain `'?0 == '?1` (so
-    // `is_changed` will return true). Since it's both ambig and changed,
-    // fulfillment will both re-register the goal AND loop again. This hits the
-    // overflow limit. This should neither be considered overflow, nor ICE.
-    eq::<'r, 'r, _>(x);
-
-    x = ();
-}
-
-fn main() {}