{"ast_node_type":"function","tokens":[{"end":83,"kind":"keyword","start":0,"text":"fn"}]}
    fn visit_attribute(&mut self, attr: &'a rustc_ast::Attribute) -> Self::Result {
impl<'a, 'b> rustc_ast::visit::Visitor<'a> for AlwaysErrorOnGenericParam<'a, 'b> {
        if attr.has_name(sym::pointee) {