From 51a9f14f7d2f38a6bfe6ee3008436522fcf2056e Mon Sep 17 00:00:00 2001
From: Max Brunsfeld <maxbrunsfeld@gmail.com>
Date: Fri, 8 Feb 2019 09:39:00 -0800
Subject: [PATCH] Ensure symbols are written in a predictable order in conflict
 messages

---
 cli/src/generate/build_tables/build_parse_table.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/cli/src/generate/build_tables/build_parse_table.rs b/cli/src/generate/build_tables/build_parse_table.rs
index fc6c6003..0554c06e 100644
--- a/cli/src/generate/build_tables/build_parse_table.rs
+++ b/cli/src/generate/build_tables/build_parse_table.rs
@@ -520,11 +520,12 @@ impl<'a> ParseTableBuilder<'a> {
 
         let mut resolution_count = 0;
         write!(&mut msg, "\nPossible resolutions:\n\n").unwrap();
-        let shift_items = conflicting_items
+        let mut shift_items = conflicting_items
             .iter()
             .filter(|i| !i.is_done())
             .cloned()
             .collect::<Vec<_>>();
+        shift_items.sort_unstable();
         if actual_conflict.len() > 1 {
             if shift_items.len() > 0 {
                 resolution_count += 1;