Derive Eq and Hash for types used in Miri's evaluator

src/librustc/mir/interpret/mod.rs

@@ -36,7 +36,7 @@ use ty::codec::TyDecoder;
 use std::sync::atomic::{AtomicU32, Ordering};
 use std::num::NonZeroU32;
 
-#[derive(Clone, Debug, PartialEq, RustcEncodable, RustcDecodable)]
+#[derive(Clone, Debug, PartialEq, Eq, Hash, RustcEncodable, RustcDecodable)]
 pub enum Lock {
     NoLock,
     WriteLock(DynamicLifetime),

src/librustc/mir/mod.rs

@@ -1624,7 +1624,7 @@ impl Debug for ValidationOp {
 }
 
 // This is generic so that it can be reused by miri
-#[derive(Clone, RustcEncodable, RustcDecodable)]
+#[derive(Clone, Hash, PartialEq, Eq, RustcEncodable, RustcDecodable)]
 pub struct ValidationOperand<'tcx, T> {
     pub place: T,
     pub ty: Ty<'tcx>,