From c011ed455bd06551c170ee781189f1c02c4a7c1a Mon Sep 17 00:00:00 2001
From: Daniel Rosenwasser <drosen@microsoft.com>
Date: Fri, 6 Nov 2015 15:00:35 -0800
Subject: [PATCH] Const.

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

diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 44dcc423e8f..e0e9a6e620f 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -10403,7 +10403,7 @@ namespace ts {
         function checkStringLiteralExpression(node: StringLiteral): Type {
             // TODO (drosen): Do we want to apply the same approach to no-sub template literals?
 
-            let contextualType = getContextualType(node);
+            const contextualType = getContextualType(node);
             if (contextualType && contextualTypeIsStringLiteralType(contextualType)) {
                 return getStringLiteralType(node);
             }