Merging upstream version 1.68.2+dfsg1.

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

1 files changed, 15 insertions, 0 deletions

diff --git a/tests/ui/macros/issue-52169.rs b/tests/ui/macros/issue-52169.rs
new file mode 100644
index 000000000..f178cd30c
--- /dev/null
+++ b/tests/ui/macros/issue-52169.rs
@@ -0,0 +1,15 @@
+// run-pass
+
+#[allow(unused_macro_rules)]
+macro_rules! a {
+    ($i:literal) => { "right" };
+    ($i:tt) => { "wrong" };
+}
+
+macro_rules! b {
+    ($i:literal) => { a!($i) };
+}
+
+fn main() {
+    assert_eq!(b!(0), "right");
+}