syntax_data: {"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":"self.add_flags(TypeFlags::HAS_TY_CORO);"}]}
source_snippet:                 self.add_flags(TypeFlags::HAS_TY_CORO);
context_before:             ty::Coroutine(_, args) => {
context_after:                 self.add_args(args.as_slice());