From 69e7841cda3045a03a596ef0b8506bd3e4e99a69 Mon Sep 17 00:00:00 2001
From: Arthur Ozga <arozga@microsoft.com>
Date: Wed, 3 May 2017 13:22:01 -0700
Subject: [PATCH] revert noop change

---
 src/compiler/core.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/core.ts b/src/compiler/core.ts
index 2f945fb7526..6de1d62c14e 100644
--- a/src/compiler/core.ts
+++ b/src/compiler/core.ts
@@ -1741,7 +1741,7 @@ namespace ts {
     /* @internal */
     export function endsWith(str: string, suffix: string): boolean {
         const expectedPos = str.length - suffix.length;
-        return expectedPos >= 0 && str.lastIndexOf(suffix, expectedPos) === expectedPos;
+        return expectedPos >= 0 && str.indexOf(suffix, expectedPos) === expectedPos;
     }
 
     export function hasExtension(fileName: string): boolean {