From 1ab67c0f222f79e4e380febcd7bd8988aa3c92d5 Mon Sep 17 00:00:00 2001
From: Armando Aguirre <armando.aguirre@microsoft.com>
Date: Thu, 14 Sep 2017 12:48:04 -0700
Subject: [PATCH] Fixed sourceFiles type error

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

diff --git a/src/services/services.ts b/src/services/services.ts
index 9cb7d6638b9..90f9acd82ea 100644
--- a/src/services/services.ts
+++ b/src/services/services.ts
@@ -1543,7 +1543,7 @@ namespace ts {
                 }
             }
             else {
-                sourceFiles = program.getSourceFiles();
+                sourceFiles = program.getSourceFiles().slice();
             }
 
             return FindAllReferences.findReferencedEntries(program, cancellationToken, sourceFiles, getValidSourceFile(fileName), position, options);