syntax_data: {"ast_node_type":"other","tokens":[{"end":84,"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 mut fake_borrow_temp = LocalDecl::new(fake_borrow_ty, temp_span);