From cd5e76b23c6ffcb7c57ba8cf31660eb4826a86a8 Mon Sep 17 00:00:00 2001
From: Daniel Rosenwasser <Daniel.Rosenwasser@microsoft.com>
Date: Fri, 2 Sep 2016 00:30:15 -0700
Subject: [PATCH] Always tack on a return statement for '_this' in derived
 classes.

---
 src/compiler/transformers/es6.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/transformers/es6.ts b/src/compiler/transformers/es6.ts
index 5dd2b154c01..886ee1b8e40 100644
--- a/src/compiler/transformers/es6.ts
+++ b/src/compiler/transformers/es6.ts
@@ -790,7 +790,7 @@ namespace ts {
                 const body = saveStateAndInvoke(constructor, hasSynthesizedSuper ? transformConstructorBodyWithSynthesizedSuper : transformConstructorBodyWithoutSynthesizedSuper);
                 addRange(statements, body);
             }
-            if (constructor ? hasSynthesizedSuper : extendsClauseElement) {
+            if (extendsClauseElement) {
                 statements.push(
                     createReturn(
                         createIdentifier("_this")