Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

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

1 files changed, 22 insertions, 0 deletions

diff --git a/src/test/ui/higher-rank-trait-bounds/issue-59311.rs b/src/test/ui/higher-rank-trait-bounds/issue-59311.rs
new file mode 100644
index 000000000..3ad548450
--- /dev/null
+++ b/src/test/ui/higher-rank-trait-bounds/issue-59311.rs
@@ -0,0 +1,22 @@
+// Regression test for #59311. The test is taken from
+// rust-lang/rust/issues/71546#issuecomment-620638437
+// as they seem to have the same cause.
+
+// FIXME: It's not clear that this code ought to report
+// an error, but the regression test is here to ensure
+// that it does not ICE. See discussion on #74889 for details.
+
+pub trait T {
+    fn t<F: Fn()>(&self, _: F) {}
+}
+
+pub fn crash<V>(v: &V)
+where
+    for<'a> &'a V: T + 'static,
+{
+    v.t(|| {});
+    //~^ ERROR: higher-ranked lifetime error
+    //~| ERROR: higher-ranked lifetime error
+}
+
+fn main() {}