Recognize ExtractPosition/InjectPosition in the node macro context analyzer

Also, fix migration missing alias

Author: Keavon

node-graph/graph-craft/src/document/value.rs

@@ -64,7 +64,7 @@ macro_rules! tagged_value {
 			/// Stored compactly as a `GradientStops`, materializes as a single-row `List<GradientStops>` at runtime via `to_dynany`/`to_any`. Aliases recover legacy on-disk shapes.
 			/// (Old documents that stored a full `Gradient` struct under this same `"Gradient"` tag are routed to `FillGradient` by `deserialize_tagged_value_with_legacy_migration`.)
 			#[serde(deserialize_with = "graphic_types::vector_types::gradient::migrate_to_gradient_stops")] // TODO: Eventually remove this migration document upgrade code
-			#[serde(alias = "GradientTable", alias = "GradientPositions")]
+			#[serde(alias = "GradientTable", alias = "GradientPositions", alias = "GradientStops")]
 			Gradient(GradientStops),
 			/// Stored compactly as a `Vec<BrushStroke>`, materializes as `List<BrushStroke>` at runtime via `to_dynany`/`to_any`. Aliases recover legacy on-disk shapes.
 			#[serde(deserialize_with = "brush_nodes::migrations::migrate_to_brush_strokes")] // TODO: Eventually remove this migration document upgrade code

node-graph/node-macro/src/parsing.rs

@@ -550,12 +550,14 @@ fn parse_context_feature_idents(ty: &Type) -> Vec<Ident> {
 						| "ExtractRealTime"
 						| "ExtractAnimationTime"
 						| "ExtractPointerPosition"
+						| "ExtractPosition"
 						| "ExtractIndex"
 						| "ExtractVarArgs"
 						| "InjectFootprint"
 						| "InjectRealTime"
 						| "InjectAnimationTime"
 						| "InjectPointerPosition"
+						| "InjectPosition"
 						| "InjectIndex"
 						| "InjectVarArgs" => {
 							features.push(segment.ident.clone());