{"ast_node_type":"import","tokens":[{"end":79,"kind":"keyword","start":0,"text":"use"}]}
use rustc_middle::ty::{self, Ty, TyCtxt, TypeVisitableExt, Upcast, VariantDef};
use rustc_middle::ty::print::with_no_trimmed_paths;
use rustc_session::lint::FutureIncompatibilityReason;