Refactor path commands (#9687)

crates/nu-protocol/src/value/mod.rs

@@ -1740,6 +1740,15 @@ impl Value {
         }
     }
 
+    /// Note: Only use this for test data, *not* live data, as it will point into unknown source
+    /// when used in errors.
+    pub fn test_list(vals: Vec<Value>) -> Value {
+        Value::List {
+            vals,
+            span: Span::test_data(),
+        }
+    }
+
     /// Note: Only use this for test data, *not* live data, as it will point into unknown source
     /// when used in errors.
     pub fn test_date(val: DateTime<FixedOffset>) -> Value {