From 2403cc4414d813e66adcdf7d4afe6d01077ec6da Mon Sep 17 00:00:00 2001
From: Ron Buckton <rbuckton@microsoft.com>
Date: Fri, 16 Oct 2015 13:39:21 -0700
Subject: [PATCH] Fixed incorrect check in tryPushNode

---
 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 ff173b4129..c8364ae430 100644
--- a/src/compiler/core.ts
+++ b/src/compiler/core.ts
@@ -992,7 +992,7 @@ namespace ts {
 
         /** Pushes a node onto the stack if it is not already at the top of the stack. */
         function tryPushNode(node: Node): boolean {
-            if (currentNode !== node) {
+            if (currentNode === node) {
                 return false;
             }