use crate:: import to make edition port easier later

Author: RalfJung

src/lib.rs

@@ -48,7 +48,7 @@ use mono_hash_map::MonoHashMap;
 use stacked_borrows::{EvalContextExt as StackedBorEvalContextExt};
 
 // Used by priroda
-pub use stacked_borrows::{Borrow, Stack, Stacks, Mut as MutBorrow, BorStackItem};
+pub use crate::stacked_borrows::{Borrow, Stack, Stacks, Mut as MutBorrow, BorStackItem};
 
 /// Insert rustc arguments at the beginning of the argument listthat miri wants to be
 /// set per default, for maximal validation power.

src/stacked_borrows.rs

@@ -3,7 +3,7 @@ use std::cell::RefCell;
 use rustc::ty::{self, Ty, layout::Size};
 use rustc::hir;
 
-use super::{
+use crate::{
     MemoryKind, MiriMemoryKind, RangeMap, EvalResult, AllocId,
     Pointer, PlaceTy,
 };