Merging upstream version 1.71.1+dfsg1.

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

1 files changed, 26 insertions, 0 deletions

diff --git a/tests/ui/implied-bounds/issue-110161.rs b/tests/ui/implied-bounds/issue-110161.rs
new file mode 100644
index 000000000..e52c8356b
--- /dev/null
+++ b/tests/ui/implied-bounds/issue-110161.rs
@@ -0,0 +1,26 @@
+// ICE regression relating to unconstrained lifetimes in implied
+// bounds. See #110161.
+
+// compile-flags: --crate-type=lib
+
+trait LtTrait {
+    type Ty;
+}
+
+// erroneous `Ty` impl
+impl LtTrait for () {
+//~^ ERROR not all trait items implemented, missing: `Ty` [E0046]
+}
+
+// `'lt` is not constrained by the erroneous `Ty`
+impl<'lt, T> LtTrait for Box<T>
+where
+    T: LtTrait<Ty = &'lt ()>,
+{
+    type Ty = &'lt ();
+}
+
+// unconstrained lifetime appears in implied bounds
+fn test(_: <Box<()> as LtTrait>::Ty) {}
+
+fn test2<'x>(_: &'x <Box<()> as LtTrait>::Ty) {}