syntax_data: {"ast_node_type":"other","tokens":[{"end":27,"kind":"keyword","start":0,"text":"self.arg_count,"}]}
source_snippet:             self.arg_count,
context_before:             is_coroutine && needs_cleanup,
context_after:             |v: Local| Self::is_async_drop_impl(self.tcx, &self.local_decls, typing_env, v),