syntax_data: {"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"Ty::new_imm_ref(tcx,"}]}
source_snippet:                         Ty::new_imm_ref(tcx, tcx.lifetimes.re_erased, coroutine_ty)
context_before:                     if receiver_by_ref {
context_after:                     } else {