syntax_data: {"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"Ty::new_imm_ref(tcx,"}]}
source_snippet:                             Ty::new_imm_ref(tcx, tcx.lifetimes.re_erased, fake_borrow_deref_ty);
context_before:                         let fake_borrow_ty =
context_after:                         let fake_borrow_temp =