Rust: fix downgrade script

rust/downgrades/7b74969ab7ac48b2c51700c62e5a51decca392ea/old.dbscheme

@@ -1960,9 +1960,9 @@ infer_type_reprs(
 ;
 
 #keyset[id]
-item_expandeds(
+item_attribute_macro_expansions(
   int id: @item ref,
-  int expanded: @ast_node ref
+  int attribute_macro_expansion: @macro_items ref
 );
 
 @labelable_expr =
@@ -3088,6 +3088,12 @@ macro_call_token_trees(
   int token_tree: @token_tree ref
 );
 
+#keyset[id]
+macro_call_macro_call_expansions(
+  int id: @macro_call ref,
+  int macro_call_expansion: @ast_node ref
+);
+
 macro_defs(
   unique int id: @macro_def
 );

rust/downgrades/7b74969ab7ac48b2c51700c62e5a51decca392ea/upgrade.properties

@@ -0,0 +1,5 @@
+description: Rename `macro_call_expansion` to `expanded`, and remove `attribute_macro_expansion`
+compatibility: backwards
+macro_call_expandeds.rel: reorder macro_call_macro_call_expansions.rel (@macro_call id, @ast_node expanded) id expanded
+macro_call_macro_call_expansions.rel: delete
+item_attribute_macro_expansions.rel: delete

rust/downgrades/f78cb8f2ab3bafb0d116cd8128f0315db24aea33/downgrade.ql

@@ -1,7 +0,0 @@
-class Element extends @element {
-  string toString() { none() }
-}
-
-query predicate new_macro_call_expandeds(Element id, Element expanded) {
-  item_expandeds(id, expanded) and macro_calls(id)
-}

rust/downgrades/f78cb8f2ab3bafb0d116cd8128f0315db24aea33/upgrade.properties

@@ -1,4 +0,0 @@
-description: Move `expanded` back from all `@item`s to `@macro_call`s only
-compatibility: backwards
-item_expandeds.rel: delete
-macro_call_expandeds.rel: run downgrade.ql new_macro_call_expandeds