issue1332 - Fix for yamls with unquoted double curly braces (#1988)

* Gnarly hardcoded fix

* Whoops remove println

crates/nu-plugin/src/test_helpers.rs

@@ -215,4 +215,13 @@ pub mod value {
         ))
         .into_untagged_value())
     }
+
+    #[macro_export]
+    macro_rules! row {
+        ($( $key: expr => $val: expr ),*) => {{
+             let mut map = indexmap::IndexMap::new();
+             $( map.insert($key, $val); )*
+             UntaggedValue::row(map).into_untagged_value()
+        }}
+    }
 }