From b3adade8b72e5cb52298c823fb1505cae80d6424 Mon Sep 17 00:00:00 2001
From: Ron Buckton <rbuckton@microsoft.com>
Date: Tue, 23 Feb 2016 13:14:44 -0800
Subject: [PATCH] PR Feedback

---
 src/compiler/transformer.ts | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/compiler/transformer.ts b/src/compiler/transformer.ts
index 45b2ba0ee2..9edecce89e 100644
--- a/src/compiler/transformer.ts
+++ b/src/compiler/transformer.ts
@@ -69,9 +69,7 @@ namespace ts {
             }
 
             currentSourceFile = sourceFile;
-            const visited = transformation(sourceFile);
-            currentSourceFile = undefined;
-            return visited;
+            return transformation(sourceFile);
         }
 
         function enableExpressionSubstitution(kind: SyntaxKind) {