From a36d386c6d08b6afbaf8316242218d9644b2ab82 Mon Sep 17 00:00:00 2001
From: varkor <github@varkor.com>
Date: Wed, 20 Feb 2019 01:10:03 +0000
Subject: [PATCH] Add ConstVid

Co-Authored-By: Gabriel Smith <yodaldevoid@users.noreply.github.com>
---
 src/librustc/ty/sty.rs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/librustc/ty/sty.rs b/src/librustc/ty/sty.rs
index 2f77ad2f1803..afe3dc2300a8 100644
--- a/src/librustc/ty/sty.rs
+++ b/src/librustc/ty/sty.rs
@@ -16,6 +16,7 @@ use crate::mir::interpret::{Scalar, Pointer};
 use smallvec::SmallVec;
 use std::iter;
 use std::cmp::Ordering;
+use std::marker::PhantomData;
 use rustc_target::spec::abi;
 use syntax::ast::{self, Ident};
 use syntax::symbol::{keywords, InternedString};
@@ -1249,6 +1250,12 @@ pub struct TyVid {
     pub index: u32,
 }
 
+#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, RustcEncodable, RustcDecodable)]
+pub struct ConstVid<'tcx> {
+    pub index: u32,
+    pub phantom: PhantomData<&'tcx ()>,
+}
+
 #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, RustcEncodable, RustcDecodable)]
 pub struct IntVid {
     pub index: u32,