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, 8 insertions, 0 deletions

diff --git a/src/test/ui/consts/write_to_static_via_mut_ref.rs b/src/test/ui/consts/write_to_static_via_mut_ref.rs
new file mode 100644
index 000000000..665c305e9
--- /dev/null
+++ b/src/test/ui/consts/write_to_static_via_mut_ref.rs
@@ -0,0 +1,8 @@
+#![feature(const_mut_refs)]
+#![allow(const_err)]
+
+static OH_NO: &mut i32 = &mut 42; //~ ERROR mutable references are not allowed
+fn main() {
+    assert_eq!(*OH_NO, 42);
+    *OH_NO = 43; //~ ERROR cannot assign to `*OH_NO`, as `OH_NO` is an immutable static
+}