TODO: TyKind lost Debug formatting. How to handle these cases?

Author: flip1995

clippy_lints/src/eta_reduction.rs

@@ -176,7 +176,7 @@ fn get_type_name(cx: &LateContext<'_, '_>, kind: &ty::TyKind<'_>) -> String {
     match kind {
         ty::Adt(t, _) => cx.tcx.def_path_str(t.did),
         ty::Ref(_, r, _) => get_type_name(cx, &r.sty),
-        _ => kind.to_string(),
+        _ => unimplemented!(), //kind.to_string(),
     }
 }
 

clippy_lints/src/transmute.rs

@@ -346,11 +346,13 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Transmute {
                                     &format!("transmute from a `{}` to a `char`", from_ty),
                                     |db| {
                                         let arg = sugg::Sugg::hir(cx, &args[0], "..");
-                                        let arg = if let ty::Int(_) = from_ty.sty {
-                                            arg.as_ty(ty::Uint(ast::UintTy::U32))
-                                        } else {
-                                            arg
-                                        };
+                                        unimplemented!();
+                                        // FIXME
+                                        // let arg = if let ty::Int(_) = from_ty.sty {
+                                        //     arg.as_ty(ty::Uint(ast::UintTy::U32))
+                                        // } else {
+                                        //     arg
+                                        // };
                                         db.span_suggestion(
                                             e.span,
                                             "consider using",