Sync from rust e9ab7872fd77861e3d182ea85a82c4649c5bb3f8

Author: bjorn3

src/lib.rs

@@ -86,7 +86,7 @@ mod prelude {
     pub(crate) use rustc_middle::ty::layout::{self, LayoutOf, TyAndLayout};
     pub(crate) use rustc_middle::ty::{
         self, FloatTy, Instance, InstanceDef, IntTy, ParamEnv, Ty, TyCtxt, TypeAndMut,
-        TypeFoldable, TypeVisitable, UintTy,
+        TypeFoldable, UintTy,
     };
     pub(crate) use rustc_target::abi::{Abi, Scalar, Size, VariantIdx};