{"ast_node_type":"other","tokens":[{"end":69,"kind":"keyword","start":0,"text":"while"}]}
        while module.span.ctxt().normalize_to_macros_2_0() != *ctxt {
        let mut module = self.expect_module(module.nearest_parent_mod());
            let parent = module.parent.unwrap_or_else(|| self.expn_def_scope(ctxt.remove_mark()));