count

pub fn count(f: Fixups) usize {
    return f.unused_var_decls.count() +
        f.gut_functions.count() +
        f.omit_nodes.count() +
        f.replace_nodes_with_string.count() +
        f.append_string_after_node.count() +
        f.replace_nodes_with_node.count() +
        f.rename_identifiers.count() +
        @intFromBool(f.rebase_imported_paths != null);
}