From d88186bc1199e960122a09aac7a0fa2d255a61a8 Mon Sep 17 00:00:00 2001
From: Ron Buckton <rbuckton@microsoft.com>
Date: Tue, 24 Nov 2015 17:06:17 -0800
Subject: [PATCH] Removed isArray branch in checkCycles as it was unnecessary

---
 src/compiler/utilities.ts | 15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

diff --git a/src/compiler/utilities.ts b/src/compiler/utilities.ts
index 2034a2d276d..e649edf2115 100644
--- a/src/compiler/utilities.ts
+++ b/src/compiler/utilities.ts
@@ -2439,18 +2439,9 @@ namespace ts {
 
         stack.push(value);
 
-        if (isArray(value)) {
-            for (const entry of value) {
-                if (hasCycles(entry, stack)) {
-                    return true;
-                }
-            }
-        }
-        else {
-            for (const key in value) {
-                if (hasProperty(value, key) && hasCycles(value[key], stack)) {
-                    return true;
-                }
+        for (const key in value) {
+            if (hasProperty(value, key) && hasCycles(value[key], stack)) {
+                return true;
             }
         }