chore(tests): Add regression for now passing test

noir_stdlib/src/array/mod.nr

@@ -341,6 +341,17 @@ mod test {
         assert(sorted == expected);
     }
 
+    global arr_0: [u32; 1] = [0];
+    #[test]
+    fn test_sort_global_and_local_single_element() {
+        let arr: [u32; 1] = [1];
+        let sorted = arr.sort_via(|a, b| a <= b);
+        assert(sorted == arr);
+
+        let sorted = arr_0.sort_via(|a, b| a <= b);
+        assert(sorted == arr_0);
+    }
+
     #[test]
     fn test_sort_100_values() {
         let mut arr: [u32; 100] = [