syntax_data: {"ast_node_type":"other","tokens":[{"end":110,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                     // The signature should be `Coroutine::resume(_, Resume) -> CoroutineState<Yield, Return>`
context_before:                 hir::CoroutineKind::Coroutine(_) => {
context_after:                     let state_did = tcx.require_lang_item(LangItem::CoroutineState, DUMMY_SP);