declare attribute type to contain location

Author: bakkot

src/node-types.ts

@@ -189,15 +189,15 @@ export type UnorderedListItemNode = {
   name: 'unordered-list-item';
   contents: FragmentNode[];
   sublist: ListNode | null;
-  attrs: { key: string; value: string }[];
+  attrs: { key: string; value: string; location: LocationRange }[];
   location: LocationRange;
 };
 
 export type OrderedListItemNode = {
   name: 'ordered-list-item';
   contents: FragmentNode[];
   sublist: ListNode | null;
-  attrs: { key: string; value: string }[];
+  attrs: { key: string; value: string; location: LocationRange }[];
   location: LocationRange;
 };