From 2876b3caba382957c864fd84a4195757f9002994 Mon Sep 17 00:00:00 2001
From: Anders Hejlsberg <andersh@microsoft.com>
Date: Fri, 2 Jun 2017 13:37:34 -0700
Subject: [PATCH] No weak type checks with comparable relation

---
 src/compiler/checker.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index aee85c69954..f8d099033f0 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -8815,7 +8815,8 @@ namespace ts {
                     }
                 }
 
-                if (!(source.flags & TypeFlags.UnionOrIntersection) &&
+                if (relation !== comparableRelation &&
+                    !(source.flags & TypeFlags.UnionOrIntersection) &&
                     !(target.flags & TypeFlags.Union) &&
                     !isIntersectionConstituent &&
                     source !== globalObjectType &&