Rust: remove VariantDef

rust/schema/annotations.py

@@ -2062,7 +2062,7 @@ class _:
     """
 
 
-@annotate(Variant, add_bases=(Addressable,))
+@annotate(Variant, replace_bases={AstNode: Addressable})
 class _:
     """
     A variant in an enum declaration.

rust/schema/ast.py

@@ -41,9 +41,6 @@ class TypeRepr(AstNode, ):
 class UseBoundGenericArg(AstNode, ):
     pass
 
-class VariantDef(AstNode, ):
-    pass
-
 class Item(Stmt, ):
     pass
 
@@ -628,7 +625,7 @@ class StmtList(AstNode, ):
     statements: list["Stmt"] | child
     tail_expr: optional["Expr"] | child
 
-class Struct(Adt, Item, VariantDef, ):
+class Struct(Adt, Item, ):
     attrs: list["Attr"] | child
     field_list: optional["FieldList"] | child
     generic_param_list: optional["GenericParamList"] | child
@@ -716,7 +713,7 @@ class TypeParam(GenericParam, ):
 class UnderscoreExpr(Expr, ):
     attrs: list["Attr"] | child
 
-class Union(Adt, Item, VariantDef, ):
+class Union(Adt, Item, ):
     attrs: list["Attr"] | child
     generic_param_list: optional["GenericParamList"] | child
     name: optional["Name"] | child
@@ -741,7 +738,7 @@ class UseTree(AstNode, ):
 class UseTreeList(AstNode, ):
     use_trees: list["UseTree"] | child
 
-class Variant(VariantDef, ):
+class Variant(AstNode, ):
     attrs: list["Attr"] | child
     discriminant: optional["Expr"] | child
     field_list: optional["FieldList"] | child