From 7cca6519ef5eeccedd45536d7555c547961503ac Mon Sep 17 00:00:00 2001
From: Anders Hejlsberg <andersh@microsoft.com>
Date: Sun, 15 Feb 2015 18:46:41 -0800
Subject: [PATCH] Include globals in check for existing identifiers

---
 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 828b03c91d7..bb250c3f9d5 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -10260,7 +10260,7 @@ module ts {
             }
 
             function isExistingName(name: string) {
-                return hasProperty(sourceFile.identifiers, name) || hasProperty(generatedNames, name);
+                return hasProperty(globals, name) ||  hasProperty(sourceFile.identifiers, name) || hasProperty(generatedNames, name);
             }
 
             function makeUniqueName(baseName: string): string {