Read the layer path in its owned form and retarget the introspection tests

editor/src/node_graph_executor.rs

@@ -999,6 +999,20 @@ mod test {
 				.filter_map(Instrumented::downcast::<Input>) // Some might not resolve (e.g. generics that don't work properly)
 		}
 
+		/// Grab all of the values of a LEVELED input, which introspects as its
+		/// whole legacy list rather than as one element. `T` is the introspected
+		/// element type, which differs from the declared one where a conversion
+		/// sits downstream of the monitor.
+		pub fn grab_all_input_level<'a, Input: NodeInputDecleration + 'a, T: Send + Sync + Clone + 'static>(&'a self, runtime: &'a NodeRuntime) -> impl Iterator<Item = List<T>> + 'a {
+			self.protonodes_by_name
+				.get(&Input::identifier())
+				.map_or([].as_slice(), |x| x.as_slice())
+				.iter()
+				.filter_map(|inputs| inputs.get(Input::INDEX))
+				.filter_map(|input_monitor_node| runtime.executor.introspect(input_monitor_node).ok())
+				.filter_map(|dynamic| dynamic.downcast_ref::<List<T>>().cloned())
+		}
+
 		pub fn grab_protonode_input<Input: NodeInputDecleration>(&self, path: &Vec<NodeId>, runtime: &NodeRuntime) -> Option<Input::Result>
 		where
 			Input::Result: Send + Sync + Clone + 'static,