wip: template binding optimization

packages/runtime-core/src/componentOptions.ts

@@ -119,7 +119,12 @@ export interface ComponentOptionsBase<
     ctx: any,
     push: (item: any) => void,
     parentInstance: ComponentInternalInstance,
-    attrs?: Data
+    attrs: Data | undefined,
+    // for compiler-optimized bindings
+    $props: ComponentInternalInstance['props'],
+    $setup: ComponentInternalInstance['setupState'],
+    $data: ComponentInternalInstance['data'],
+    $options: ComponentInternalInstance['ctx']
   ) => void
 
   /**