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/closures/closure-no-fn-1.rs b/src/test/ui/closures/closure-no-fn-1.rs
new file mode 100644
index 000000000..48c3e4725
--- /dev/null
+++ b/src/test/ui/closures/closure-no-fn-1.rs
@@ -0,0 +1,8 @@
+// Ensure that capturing closures are never coerced to fns
+// Especially interesting as non-capturing closures can be.
+
+fn main() {
+    let mut a = 0u8;
+    let foo: fn(u8) -> u8 = |v: u8| { a += v; a };
+    //~^ ERROR mismatched types
+}